Car Tire ??

[oldman]

Has anyone ran a car tire on a RSV? I have a 2000 and would like to find a car tire for the rear. I used to run one on a Valkyrie and really liked it. Thanks, Oldman

[SaltyDawg]

Don't know why you would want to do it, but I did read about someone doing it about 5 years ago. Wasn't a good experience if I remember correctly. He used to be a winger and had one on his GW, tried it on a RSV, didn't like the handling.

[papa smurf]

Im something of a newbie, but everything I've read or heard says there is a reason the cross section of a motorcycle tire is more of a "U" than a square. When you lean, the "U" shape moves in and out of a lean with no jerk. A square bottom tire ... not so much. think hard about this one.

[tx2sturgis]

The F6 guys use to do this, and many still do...I have a friend who ran one on his GoldThing(tm).

They claimed it would go many more miles than a standard m/c tire...and some even claimed it handled ok...I dunno...seems like it would handle bad in the turns, since car tires have a different profile than a bike tire.

I dont know of anyone running a car tire on a Venture...it would have to be pretty small... have you looked at the clearance between the drive shaft housing and the tire sidewall? Not much room there!

[Tartan Terror]

Do Not Run a Car Tire!!! I own a tire shop so take this as you will. There are a few reasons why this is not safe. First the RSV uses Bias tires. Construction is important as a Radial and a Bias construction is a very different animal. The tires flex differently and will feel very different. Bike tires are reinforced differently to handle the forces put on it in a leaning turn. The shape of the tire is different for an obvious reason. To allow maximum surface on the roadway in a turn where you need the most traction. On a car tire the shoulder is square and the more you lean the less tire you have working for you. As you lean on the bike a car tire will lift the tread area and only leave you on the square shoulder which when you pass that point will want to lay you on the side. If you have a Trike the rules are a little different but now on the bike. One other thing- After the crash on the car tire you insurance company will leave you in the wind as it is not meant to be on the bike and will fail the safety inspection. Their reason not to pay!

I care for you Brother--- Do not take a chance with your life!

[AmnChode]

F6's guys run them and alot of VTX guys do as well (check VTXOA's forums and do a search for Dark Side). Most of the guys that do run them, love them. They do admit it requires a little more countersteering in a turn, but nothing more than getting used to it. However, they are stating the benefits far outweigh that downfall. More grip on tht straights, better wet road handling, better stopping capabilites, and overall improved traction to name a few, due to the size of the contact patch. And in turns, it has just as much contact as a motorcycle tire. Simple unscienctific test is running each kind of tire through a puddle and look at the trail it leaves afterwords for comparison.

Main reason it doesn't effect the lean so much is because most of the lean is provided by the front tire...which, to a degree, is confirmed when the front tire of a RSV is changed to a smaller tire for better handling. And it has been done for decades...older Harley riders used to do it when MC tires weren't worth a damn.

However, as far as I know, there aren't any tires to fit our needs. I know for the VTX 1300 that there are only a few tires that fit (metric tires, at that). Basically it is the same tire that fits an old 60's VW bug. I believe ours is just too skinny...would have liked to have seen it done though. Just something about seeing a bike with a Goodyear Triple Tread on the back...hehe


BTW...here is site with a guy who has been running a car tire on a Valk for over 100k miles: http://lifeisaroad.com/stories/2004/10/27/theDarkSide.html

[oldman]

Thanks to everyone who gave their opinions. Like I said I have run a car tire before and really liked it. I have read most of the stuff on The Dark Side. Just don't know where I can find one narrow enough to clear. The 155/80 Goodrich Radial TA and the Toyo 310, 155/ 80 is the closest I have found. oldman

[flb_78]

The only tires I have seen that are close is the BFG T/A, and some Volkwagon front tires in 165r15 size.

[oldman]

Thanks flb, Do you think that would be narrow enough not to rub? This Toyo seems to be the closest but I havn't found where to buy it. Thanks to all who sent me the Dark Side site. http://lifeisaroad.com/stories/2004/10/27/theDarkSide.html
That explains it pretty well!! All I can say is don't knock it if you havn't tried it! Oldman <><

[flb_78]

I think that rooster1 is putting one on his bike. I can't remember what size though exactly, but he has a sidecar.

I see no problems with using a car tire on the back and I think that it would be an improvement over the bias ply tire.

This is a heavy bike and I don't think that a polyester bias ply tire is heavy enough and instead a steel belted radial would be better.

The contact patch is greatly improved, even in cornering. The tire flexes when the bike is turned. The difference is that it is harder to initiate the turn, but once the bike is off center, it's smooth and controlled.

YouTube - CTOW 2 (Dunlop Winter Sport M3 195/55/16... 180 degree flip

[pegscraper]

I'd be inclined to try one, but I've never seen a car tire with white walls on both sides of it. It's pretty well out of the question for me. I understand the desire for getting more mileage out of the tires. The manufacturers can make them last longer and they know it. But when they have us all buying them at the current rate, why in the world would they want to make them last longer and reduce their sales.

[Saddletramp]

Hey Tarten Terror, did you ever hear your self talk and wonder if any one else was listening? I hear you brother!!!!

[oldman]

I just found the Coker Tire site and they have a Firestone and a Michelin in a 145R15. Guess tomorrow I will get out the tape and have the Mrs do some measuring. I'm too old and fat to get down on the floor! Oldman

[86er]

That's an interesting video that fib_78 put up. Pretty cool mounting for the camera! And although it didn't look like the bike was leaned over too far, I was impressed with the scraping noises I was hearing. It must have been over at least to the pegs. Then I realized that I was hearing those scraping noises while the bike was straight up too!!! I think maybe that was the squelch on the CB!

I would like to see (or hear) that bike leaned all the way over! I don't think I would trust rubber that hard, or tires with that profile, with the way I ride the twisties (or highway off ramps for that matter).

[Squeeze]

I just found the Coker Tire site and they have a Firestone and a Michelin in a 145R15. Guess tomorrow I will get out the tape and have the Mrs do some measuring. I'm too old and fat to get down on the floor! Oldman

I think a wider than stock Tire would be better, because the Rim would force the Thread of the Tire in a bit rounder Position. 155 would be my Width. But you got to look out for Tire Diameter and the Ratio between Width and Height. The bigger the Ratio is, the more of leaning Force goes into the Sidewalls of the Tire. This helps cornering like the the rounder Shape of the Tire.

The Tire Diameter is important because it changes the RpM you run at a given Speed. Don't go into larger, because this makes the long Ratio of the 2Gens even longer.


Disclaimer...
I wouldn't do it, no Matter what and why ... On a Trike or a Sidecar, ok, but not on a Motorcycle

[KitCarson]

This thread is all in good discussion......but if anyone wishes to actually use a car tire on a motorcycle....first go buy a new first aid kit....a deluxe one.....make sure you have a friend following you with a cell phone to call 911 and he is versed in rescue. If you survive......make sure you have several magazines ....the nurse can read them to you while you are in traction......

Motorcycle tires are manufactured with softer chemical makeup for a reason. They stick to the road.......the tread also goes up the sidewall of the tire. The tire is formed different........for a motorcycle........

Car tires are of a hard chemical compound.......less traction.......no tread up the sidewall........and the tubeless bead will not fit the rim.....want a blow out at speed......do not think I do................

I really hope no one takes this serious.....and actually installs a car tire on a bike.......it is simply very, very dangerous.......something that should not even be considered....

[Tartan Terror]

Hey Tarten Terror, did you ever hear your self talk and wonder if any one else was listening? I hear you brother!!!!
I know. Thanks for the support. I just hope none of the " Professionals" here ever need to test what Im trying to tell them. I strongly suggest they contact Yamaha, the car tire manufacturer and their insurance company. I do this for a living and know the laws involved but who and I? I just hope it stops someone some headaches and more.

[Tartan Terror]

This thread is all in good discussion......but if anyone wishes to actually use a car tire on a motorcycle....first go buy a new first aid kit....a deluxe one.....make sure you have a friend following you with a cell phone to call 911 and he is versed in rescue. If you survive......make sure you have several magazines ....the nurse can read them to you while you are in traction......

Motorcycle tires are manufactured with softer chemical makeup for a reason. They stick to the road.......the tread also goes up the sidewall of the tire. The tire is formed different........for a motorcycle........

Car tires are of a hard chemical compound.......less traction.......no tread up the sidewall........and the tubeless bead will not fit the rim.....want a blow out at speed......do not think I do................

I really hope no one takes this serious.....and actually installs a car tire on a bike.......it is simply very, very dangerous.......something that should not even be considered....

Kit I see we are on the same side on this one. You are right on the money!

[Tartan Terror]

Guys one more thing. A bike tire is designed for the lean and get traction. A Car tire is designed to keep the tread on the ground no matter what because its not ment to lean. So if you put a car tire on there it is designed to fight the lean. What does that tell you? If anyone is interested I will take a car tire and bike tire and post a cross section when I get the chance. You will see what I mean. Let me know if you want me to go to the trouble.

[pegscraper]

I hear what you're saying, and from an academic standpoint it makes sense. But there are too many folks around who are doing it and not having problems with it, and saving a heck of a lot of money on tires. At some point one has to say that maybe there is something wrong with the academic theory. There was a discussion very recently on the Delphi Royal Star board about this too. clicky clicky (http://forums.delphiforums.com/royalstar/messages/?msg=6165.1) Much the same story, a bunch of experts who haven't tried it saying it won't work. But the guy asking the question also turned up a lot of good information about sizes and brands. I'd like to try one, I almost certainly would do it, but I like my white walls too much.

[Tartan Terror]

Just because a few do it and get lucky dont mean its safe or right. It just means they got lucky and nothing has happened YET! Look at the accidents that have happened to people we love around here. Squid had a correct tire fail on him and people got hurt but at least the insurance company will back him up and make it right. In addition to that the tire co will make it right as I feel its a defective tire. If that had been a car tire as soon as the adjuster saw that the claim would have been null and void and that would have been the end to it. Vehicle was modified and is tire is not approved by the DOT for MC use. No longer the insurance companies problem. Just cause somone makes it fit and gets lucky that dont mean that it is safe or right.

[SaltyDawg]

I agree with what Tartan is saying but let me quantify my earlier statement.

Upon further review (meaning I just remembered) the guy who ran the car tire put it on because he did a lot of cross country riding and pulled a popup camper behind the bike. Pulling the camper all the time was wearing his rear tire out a lot faster. That's the reason he went to a car tire. Still don't know what the final results were though.

I personally wouldn't chance it. There is a reason there are motorcycle tires.

[flb_78]

That's an interesting video that fib_78 put up. Pretty cool mounting for the camera! And although it didn't look like the bike was leaned over too far, I was impressed with the scraping noises I was hearing. It must have been over at least to the pegs. Then I realized that I was hearing those scraping noises while the bike was straight up too!!! I think maybe that was the squelch on the CB!


It was a bad dubbing of the video. For some reason, youtube really distorts some videos.


Here's a video of a car tire on the back of a supercharged Rocket 3.

YouTube - Triumph Rocket III playtime SUPERCHARGED RAW Version

[SteveW]

Might as well throw in my 2 cents in. I would not put one on a 2 wheel bike but I have a hack on mine and the bike does not lean !!. It wears the front and rear tire flat in the middle. The trouble with a bike tire is when the center gets warn flat the bike handles better with the hack on it. However by that time the tire is shot.
There are a large number of sidecar riders running car tires on the front and rear of their rigs. ( if you look on racing sidecars they almost all use car tires ).

If I didn't have the sidecar on my bike I would'nt even be thinking about it. 4 to 5 thousand miles out of a rear Bike tire is the pits. One thing nice about the ventures is it has a wide rim compaired to most bikes.

I am still looking for a good size match in width and dia. so far a 165/80/15 looks real close.

Scott I know what you are saying about running one on a bike but with a sidecar the flatter the tire surface to the ground the better the rig handles and with a car tire I can just about double the road contact surface.

[oldman]

Aah, come on Squeeze, try it, you'll like it!!! http://www.venturerider.org/forum/images/icons/icon10.gif Oldman

[LSupina]

If a darksider finds a tire that fits please post sizes so those of us who are interested can try it out too.

To the nay-sayers, go out in your drive, turn the wheels of your GMC or Chevy all the way to lock and go check how much lean your tires are already dealing with.

[86er]

It was a bad dubbing of the video. For some reason, youtube really distorts some videos.


Here's a video of a car tire on the back of a supercharged Rocket 3.



Sorry Forrest, I didn't see a car tire on that Triumph. Maybe had one maybe not.

I won't say any more...I probably shouldn't even post tonight...I'm not in a real good mood!

[Tartan Terror]

If a darksider finds a tire that fits please post sizes so those of us who are interested can try it out too.

To the nay-sayers, go out in your drive, turn the wheels of your GMC or Chevy all the way to lock and go check how much lean your tires are already dealing with.
This professional Naysayer has a question. Are you turning your car Lock to Lock at 30mph? Not a very good example. That would put that truck on its roof.

[BradT]

I won't say any more...I probably shouldn't even post tonight...I'm not in a real good mood!


So it would not be nice to kick you while your down :rotf:

Hope all is well, and tomorrow is another day.

Brad

PS I highly doubt I would try it, but I read the article with the guy who had over 100 thousand miles, on car tires. I doubt he is just lucky.

[bikerjohn51]

when you can get 40-50KM out of a good Michelen or Metzler...... why bother ?????:confused24::confused24:

[flb_78]

Sorry Forrest, I didn't see a car tire on that Triumph. Maybe had one maybe not.

My Bad. I forgot that you can't see his other videos. He has other videos in his channel of his bike that do show the tire.

http://youtube.com/user/RiderRocketman

[Squeeze]

Aah, come on Squeeze, try it, you'll like it!!! http://www.venturerider.org/forum/images/icons/icon10.gif Oldman


Definitaly NOT!!

NO try, NO like it.


My riding Style is more on the Pegscraper Side. On my Max i have radial 17" Rims with a 180/55R17 on the rear. Do you know the Term "to drive the Elephant over the Feet" ?

In my Case, there is no Elephant left ... :whistling::whistling::whistling::whistling::whist ling:

Well this doesn't apply to my Venture Rides, just because i'm tired of Bruises on my back ...

[LSupina]

Funny how one guy asking a simple questions caused so many others with no vested interest to happily flame the conversation. Well congratulations to everyone who has no experience using a car tire but thinks they are some kind of expert, you have succesfully driven this conversation underground into e-mails. Guess you'll all be riding Harley's soon since that is what everyone else is doing, don't dare to open your mind. Just like every other forum, a few trying to inflict thier opinions on everyone else. It's very disappointing.

[Alex]

Tartan Terror, do you carry bike tires?

[pavehawkfe]

Doesn't look like the car tire did so well in this video.

Gene

YouTube - Lost It on a Triumph Rocket III

[oldman]

Well guys I have been thinking about how closed minded you are but I guess I am just as bad wanting to do it my way no matter what anybody else says. The only difference is I have tried it and it worked VERY well for me! You are welcome to your opinion and I will have to just disagree. Opinions are like butts, everyone has one! oldman http://www.venturerider.org/forum/images/icons/icon9.gif

[wizard]

Heck, when I posted that I liked the Metzler tire better than a Avon tire...whew! When I mentioned that I had a car tire on my Harley, oh my gawd! If anybody does get a car tire that will fit on my Venture, I'm mounting it! I never had a problem with the one I had before, and I rode the heck out of it! Hang in there, buddy! Opps, did I mention I hate being forced to wear a helmit?

[flb_78]

Doesn't look like the car tire did so well in this video.

Gene



Tire did fine, the camera fell off the bike.

[flb_78]

Well guys I have been thinking about how closed minded you are but I guess I am just as bad wanting to do it my way no matter what anybody else says. The only difference is I have tried it and it worked VERY well for me! You are welcome to your opinion and I will have to just disagree. Opinions are like butts, everyone has one! oldman http://www.venturerider.org/forum/images/icons/icon9.gif


I'm all for it. Im just too financially strapped to spend 75 bux on a tire that might not work and if it doesn't I can't get my money back on it.

[2WHEELSFORME]

I could not find the correct size for my Venture but I do run a CT on my VTX. Cost was $45 vers the $175 for the motorcycle tire and tread life is also doubled. The tire rides fine and will corner over until the floorboards scrape so guess that is good enough. Straight line traction is vastly improved and I like the looks. More than just a few are doing it espc Valkerys and VTXs and I have heard of none having problems yet with hundreds of thousands of miles logged.
http://bigbikeriders.com/photopost/data/500/2508tire_and_tag_4_.JPG

[KitCarson]

Well you can call me a stick in the mud......a flamer........or just an ordinary A$$ . I love an good discussion......and no I will not take offense at strong feelings.....I actually kinda like those who will stand and go toe to toe and not run off.
I am a common sense person......so if I pull up to a frozen lake to go fishing and a sign says .....caution thin ice.....I will go put my fishing rod back in the attic........
So for a few hours last night......I actually concentrated on could just maybe some of us be wrong about car tires on a bike.......and came up with a few ways they could be used....On a trike......on one with a side car.....and on some of the custom designs on the art inspired choppers we see at shows.
These applications are a minority....and not the norm....and yes there will always be someone somewhere who will try most anything.....rumors seem to somehow with time become fact......so those who do put car tires on bikes tend to not have problems as they do not appear to ride much or ride hard, go in a straight line all the time.....
I will again say I am no expert on anything.......just one who learns from life and has a lot of common sense......so if I have learned from life that it is not most of the time the biggest guy in the bar that is the meanest....I will still stick to my motorcycle designed and engineered tires.
I did do a little research and those who have used car tires are not all exactly all that impressed with it either......most of the complaints are in cornering.....see I am an ex-racer.......did you now that in a hard corner when you lay that bike over...you are actually steering with the rear tire? If you use the front at all.....it is to counter steer in a power slide.......so laying a car tire over on its side....with its footprint on the sidewall...makes for I would think a very squirrely situatation.....no I have never used a car tire...but some do state you have to fight the bike around the corner..some have welded special rings to the rims to insure the tire will not blow off the rim bead.......I would also tend to think it would be a handling issue.....and to do this on the street.....on wet roads.......that would not be good.

I also looked and looked for anything insurance related to using car tires on a bike. I did not find much......but what I did find out is all insurance companies have on retainer these investigation experts....they take photos of accidents......and review even photos taken by the field adjusters.....these guys are sharp......well educated.......some with degrees in physics.....yes they will spot something like this and you will be out of luck.
Again we as people who love to ride.......look forward to getting on these machines and going to see friends.....gives us a goal or a place to go.....we use these machines.....they do not sit for long.......and as we gain experience and as life teaches us things......most of us do become aware of safety......how to ride....do like to be safe......we are concerned about our friends......do not want anyone to get hurt......it is really when you get down to it....not about the bikes....it is the lifestyle.....and the friendships and love of riding that makes us what we are.

Bottom line is car tires are not designed to be used on motorcycles for a lot of reasons......yes some will try......some will for a time get away with it........but I for one without stating all the design reasons over again......will not use a car tire.......if any of my friends even hint at it .....I will hit them with a stick.........I kinda like my friends......do not want to lose any of them on these machines we all enjoy so much......it is just common sense.

Okay I will shut up now........not going to say another word on this subject........I am just one with a whole lot of common sense and love these machines.....and also over the years have became very, very safety aware..........so it is bike tires for me.......I really do not care if they wear out one a month.......if it sticks to the road.......makes me happy. And any experienced rider who reads this....knows exactly what I am saying.

[Squeeze]

Well guys I have been thinking about how closed minded you are but I guess I am just as bad wanting to do it my way no matter what anybody else says. The only difference is I have tried it and it worked VERY well for me! You are welcome to your opinion and I will have to just disagree. Opinions are like butts, everyone has one! oldman http://www.venturerider.org/forum/images/icons/icon9.gif

Do i have to feel guilty now ?? I was talking about the technical Side of this Issue and i was saying was i think in my Disclaimer.

I agree 100 Percent with Kit on this Issue and his Posting above.

Only Thing he's a bit wrong is his Description of what happens when your cornering the Bike. the Sidewall is never in Contact with the Road.

The Tire is forced by two different Movements. The Rim is moving the Sidewall of the Tire to the inside first and the Tread stays in flat Position with his full Contact patch on the Street. If the Travel of the Sidewall is not enough to reach the Lean Angle needed for the given by Speed, the outside of the Tread is pulled by lean Forces off the Road. This is where is begins to get dangerous. The remaining Patch which is now in Contact with the Road is smaller than the Patch in similar Situation on a M/C Tire. The more lean Angle you produce, the smaller the Contact Patch gets. Wrong Function and it won't work for me.

You can see this in the Video Floyd provided. Just look out for the Moment when cornering begins. I also share any legal Concerns which have been mentioned.

[2WHEELSFORME]

The world is flat and if you sail too far out to sea you will fall off the edge. Glad everyone did not believe that! LOL Reviewing the use of CTs on motorcycles should be left to those who have tried it. And stateing that someone who uses one does not ride far or hard is speaking without knowlage. Funny how riders of fat slow touring bikes like to think they are performance riders. My two cruisers do not need the high performance tires that many other type bikes require. You know, bikes that will lean over without scraping a floorboard. Hell even I am a fat, slow, low performance person. :cool10:

[Squeeze]

Or maybe they insist that much because they do not want to have somebody killed by a wrong Idea.



btw
did you hear about that Captain in 1514 that drove his Ship right over the Edge ??



No ?



Neither do i, possibly he just didn't made back ... :)

[Snarley Bill]

my take on car tires ,dumb! followed this discussion on another forum. pro's ,they last alot longer. cons, tubless bike rims are a different shape then car rims. some guys said it took close to 100psi to seat the tire then when it pops out on the rim some exploded if they did'nt explode it probably weakened the casting. or over stressed the tire. bad handling, any one who says they handle as good as a bike tire does'nt know much about handling. harder rubber compound ,not as good of traction on wet pavement and not as big a tire patch on the road ,in the curves. there are people who jury rig all kinds of things and get away with it, but that don't mean it's safe or a smart move. i have never had a car tire on a bike and never will. i have better sense than that. it is a chance that people take with no research to back it up. your life is worth alot more than a few hundred dollars saved. just my 2 cents. don't take my word for it talk to a tire design engineer and get an honest opinion. i could almost garrantee what they would say. bill :no-no-no::stirthepot: :)

[Tartan Terror]

Well you can call me a stick in the mud......a flamer........or just an ordinary A$$ . I love an good discussion......and no I will not take offense at strong feelings.....I actually kinda like those who will stand and go toe to toe and not run off.
I am a common sense person......so if I pull up to a frozen lake to go fishing and a sign says .....caution thin ice.....I will go put my fishing rod back in the attic........
So for a few hours last night......I actually concentrated on could just maybe some of us be wrong about car tires on a bike.......and came up with a few ways they could be used....On a trike......on one with a side car.....and on some of the custom designs on the art inspired choppers we see at shows.
These applications are a minority....and not the norm....and yes there will always be someone somewhere who will try most anything.....rumors seem to somehow with time become fact......so those who do put car tires on bikes tend to not have problems as they do not appear to ride much or ride hard, go in a straight line all the time.....
I will again say I am no expert on anything.......just one who learns from life and has a lot of common sense......so if I have learned from life that it is not most of the time the biggest guy in the bar that is the meanest....I will still stick to my motorcycle designed and engineered tires.
I did do a little research and those who have used car tires are not all exactly all that impressed with it either......most of the complaints are in cornering.....see I am an ex-racer.......did you now that in a hard corner when you lay that bike over...you are actually steering with the rear tire? If you use the front at all.....it is to counter steer in a power slide.......so laying a car tire over on its side....with its footprint on the sidewall...makes for I would think a very squirrely situatation.....no I have never used a car tire...but some do state you have to fight the bike around the corner..some have welded special rings to the rims to insure the tire will not blow off the rim bead.......I would also tend to think it would be a handling issue.....and to do this on the street.....on wet roads.......that would not be good.

I also looked and looked for anything insurance related to using car tires on a bike. I did not find much......but what I did find out is all insurance companies have on retainer these investigation experts....they take photos of accidents......and review even photos taken by the field adjusters.....these guys are sharp......well educated.......some with degrees in physics.....yes they will spot something like this and you will be out of luck.
Again we as people who love to ride.......look forward to getting on these machines and going to see friends.....gives us a goal or a place to go.....we use these machines.....they do not sit for long.......and as we gain experience and as life teaches us things......most of us do become aware of safety......how to ride....do like to be safe......we are concerned about our friends......do not want anyone to get hurt......it is really when you get down to it....not about the bikes....it is the lifestyle.....and the friendships and love of riding that makes us what we are.

Bottom line is car tires are not designed to be used on motorcycles for a lot of reasons......yes some will try......some will for a time get away with it........but I for one without stating all the design reasons over again......will not use a car tire.......if any of my friends even hint at it .....I will hit them with a stick.........I kinda like my friends......do not want to lose any of them on these machines we all enjoy so much......it is just common sense.

Okay I will shut up now........not going to say another word on this subject........I am just one with a whole lot of common sense and love these machines.....and also over the years have became very, very safety aware..........so it is bike tires for me.......I really do not care if they wear out one a month.......if it sticks to the road.......makes me happy. And any experienced rider who reads this....knows exactly what I am saying.
Kit its nice to see somone else who knows the reality of these things. yeah is may work but is you life worth it? I dont think they will understand until it all goes wrong for them.


As for all the "computer professionals" out there. Im talking about the keyboard jockeys that see it on the web and all of a sudden decide that is cool. You dont see the whole picture. I do this work everyday and see so if you think you are more of a "professional" based on that than the real professionals I only wish you luck. Remind me to tell you the story of the guy around here who lost a million dollar lawsuit based on the fact that he had a car tire on his landscape trailer based on the fact that he put a car tire on a trailer to save about 10 bucks. (I did not install those tires here). Just think about it.

Im finished in this thread. And do what you want but I only share all this because if I can help any of you not get hurt it is worth it to me.

BTW someone mentioned using a Goodyear Tripletred on a bike. Ill give you the number to their engineering dept and ask them their recommendation.

[Snarley Bill]

Kit its nice to see somone else who knows the reality of these things. yeah is may work but is you life worth it? I dont think they will understand until it all goes wrong for them.


As for all the "computer professionals" out there. Im talking about the keyboard jockeys that see it on the web and all of a sudden decide that is cool. You dont see the whole picture. I do this work everyday and see so if you think you are more of a "professional" based on that than the real professionals I only wish you luck. Remind me to tell you the story of the guy around here who lost a million dollar lawsuit based on the fact that he had a car tire on his landscape trailer based on the fact that he put a car tire on a trailer to save about 10 bucks. (I did not install those tires here). Just think about it.

Im finished in this thread. And do what you want but I only share all this because if I can help any of you not get hurt it is worth it to me.

BTW someone mentioned using a Goodyear Tripletred on a bike. Ill give you the number to their engineering dept and ask them their recommendation. hey scott, just curious . why can't you use good car tires on a trailer? i always thought most light trailer tires were just cheap low mileage tires. whats the difference. bill :2133:

[Tartan Terror]

hey scott, just curious . why can't you use good car tires on a trailer? i always thought most light trailer tires were just cheap low mileage tires. whats the difference. bill :2133:
Trailer tire construction is different such as plys. usuallly significantly higher. I know at least here in NY there are DOT laws against use of P-metric or Passenger tires and require ST rated which means Special Trailer. You can use Bias or Radial trailer tires but they must be trailer rated. Only exception to the Rule is if you have a trailer using LT or light truck tires usually 10pl which are approved because they are approved for the weight ratings.

[loehring]

I know this discussion doesn't include us 1st Geners but I have always had a belief that if there's anywhere you DON'T cut corners it's on your tires. I ride hard and at pretty high speed most of the time and I know that there are two patches of rubber the size of my fist between me and a very bad day. In a hard lean at 80mph those two patches are the most important part of my bike. I'll cut corners on accessories, try and do all the work I can to save money and even shop for the cheapest way to clean but I never want to wonder what's between me and that street screaming by my knee. Maybe I would have a different perspective if I rode slower on mostly straight roads but where I ride (North GA and NC) there's not much straight around.

[flb_78]

There is a greater contact patch with a car tire then a motorcycle tire, even in the turns. The tire flexes as the bike turns.

Goldwingers and Valk riders have been using them for years with no problems.

[flb_78]

A car tire on the dragon!! Oh the humanity!!!


http://bp1.blogger.com/_LxZ4Mi3rR3Q/R00r2AE27CI/AAAAAAAAFMA/BA_vR7DJs4g/s400/img_6517.jpg

[Squeeze]

There is a greater contact patch with a car tire then a motorcycle tire, even in the turns. The tire flexes as the bike turns.

Goldwingers and Valk riders have been using them for years with no problems.


Excuse me Forest,

please can you explain me the bigger contact Patch on a Car Tire in a Turn according to the Pic you posted as a follow up ??

[2WHEELSFORME]

I will no longer offer my OP on this forum. It appears one or two big mouths who have something and a lot to say about every subject will drown out real experiance. Because I acually am using a car tire, I am now, not a long or far rider, don't know about bike handling and just plain dumb!

[Freebird]

I don't see the problem with this thread. It has been a decent discussion. Some are adamantly against and some have run car tires are are very comfortable with it. Some are on the fence and want to hear the pros and cons. That's why this is called a "DISCUSSION" forum. We discuss things. :)

People should feel free to share their thoughts and opinions on such important issues. Then each person has the right to make up their own mind. If somebodies opinion differs from yours...so be it. Take it or leave it.

The only other thing I could do is to start deleting all threads where there isn't 100% agreement. That would sure save on server space. :whistling:

There have been several threads lately where people have sure seemed to get upset over things that should NOT upset anybody. I think that PMS is really starting to set in now. Everybody just take a DEEP BREATH...we will all be riding again soon. This tire issue seems to be almost a moot point anyway. NOBODY has come up with one that will for sure fit the RSV.

[Snarley Bill]

I don't see the problem with this thread. It has been a decent discussion. Some are adamantly against and some have run car tires are are very comfortable with it. Some are on the fence and want to hear the pros and cons. That's why this is called a "DISCUSSION" forum. We discuss things. :)

People should feel free to share their thoughts and opinions on such important issues. Then each person has the right to make up their own mind. If somebodies opinion differs from yours...so be it. Take it or leave it.

The only other thing I could do is to start deleting all threads where there isn't 100% agreement. That would sure save on server space. :whistling:

There have been several threads lately where people have sure seemed to get upset over things that should NOT upset anybody. I think that PMS is really starting to set in now. Everybody just take a DEEP BREATH...we will all be riding again soon. This tire issue seems to be almost a moot point anyway. NOBODY has come up with one that will for sure fit the RSV. well said don, i was almost ready to weaken and think i was wrong arguing and then realized although i have no experience with car tires, i have many years of research and very learned engineers on my side of the fence, namely the people who design and manufacture tires. surely all these manufacturers know more than we do about tires. just never was the backyard mechanic type. always relied on research, common sense, safety, and the intellegience i was given to use sensibly. it's every man to his own opinion, but if some one is wrong like scott told me i was about using car tires on my trailer, i would like to know about it. i learned something i did'nt know on this thread that may save my horses in a horse trailer or what ever i haul on my flat bed,and i thank scott for that. bill :clap2::2133:

[oldman]

A discussion is a good thing. Arguing is not a good thing. Trying to shove your opinion down everyone's throat is not a good thing! 2wheels don't let the big dogs run over you. I still want to hear your thoughts... As far as the insurance part, I only carry liability ins. on all my bikes, so it doesn't make any difference.
I think we have all given our opinion so unless someone can give me the correct size that will fit, Coker says Firestone 155R15, lets just leave it open for some new blood. Thanks Oldman <><

[flb_78]

so unless someone can give me the correct size that will fit, Coker says Firestone 155R15, lets just leave it open for some new blood. Thanks Oldman <><

That's the problem no one has tried it that's been documented on the Venture. You tell me and show me that the tire will fit and I'll run one. I hate paying extra for "specially designed" motorcycle tires.

[oldman]

There is a very good tire calculator on Discount Tire Direct's web site. Info. center - Tire Dimensions Made Simple. This should help find the correct size.

[flb_78]

From what I can tell, it appears the BFGoodrich T/A radial, 155/80R15 is the best tire.

[pegscraper]

Now if I only knew where to find some port-a-walls, or some white wall paint, I'd try one. Gotta have my white walls.

[oldman]

If anyone is interested in reading more on this subject Royal Star Riders-VFours Rock has a lot under Royal tech discussion-anyone running a auto tire. Thanks oldman

[oldman]

O.K. girls I got the tire on my bike. It is a Goodrich Radial T/A 155-80-15. I put the letters to the left side so when it's on the side stand they aren't noticeable and when I am riding I doubt anyone will see the letters because of the bags. I have plenty of room to have used the next size wider. I am trying to put pictures on here but it's taking longer to do that than to put the tire on the rim. It did take a little time to get the bead to seat properly. I took everything apart and greased it while it was easy to get to. It took 3 tries to hit the u joint with the drive shaft but then it slid right in thanks to all the pictures and hints on these forums.
http://i278.photobucket.com/albums/kk119/cwb47/MVC-015S.jpg
http://i278.photobucket.com/albums/kk119/cwb47/MVC-016S.jpg
http://i278.photobucket.com/albums/kk119/cwb47/MVC-019S.jpg
http://i278.photobucket.com/albums/kk119/cwb47/MVC-017S.jpg
:cool10:

[pegscraper]

Wow, that's great. I doubted that one would actually fit our bikes because the frame is so narrow there. You'll have to let us know how it rides and handles now. What would the next size wider be? Some of your pictures aren't showing up. Does that tire have raised white letters on it?

Good thing you greased everything while it was apart, because it will be a while before you have to take it apart again. The rear tire might outlast the bike.

For those of us who like white walls, I have wondered if porta walls could be used. They've been around for decades. I see them on ebay. I've never seen one right in front of me though. I wonder what they'd look actually look like.

[gibvel]

What do you have on the front? Radial? Bias?

Just can't see how you would have near as much of a contact patch on tight turns, with that car tire, as opposed to a MC tire. Given that, as some say, the car tire would still flex, there are 2 factors. 1. That car tire was made to take more weight than what you'll have on the RSV. So, while it will flex it will not flex as much as designed for and will probably give a razors edge on the road. 2. you have substantially more "tread" to a auto tire where as a MC tire has more flat surface. As an example, try getting any NASCAR driver to drive with tires that have tread. They would just laugh...not enough contact area with a tire with tread, hence the slicks, more contact area.

Good luck.

[flb_78]

Dang it!! I thought I was going to be the first one!! I have one on order and I'm just waiting on the delivery. I also ordered a BFG 155/80R15.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=007&sspagename=STRK%3AMEWN%3AIT&viewitem=&item=170203201575&rd=1

Glad to see it fits with room to spare.

[AmnChode]

Some of your pictures aren't showing up.

Same problem here...only got one of the pictures...the rest were "moved or deleted".....Maybe just attach them to the post would be better/easier.

BTW...have you had a chance to give it a good ride yet?

[wizard]

Outstanding!!! let us know what you think about the handling, cause we all know you're going to take it to a track day! Put them sportbikes in their place! Seriously though,
after you adjust to it and it to you, let us know what pressures you keep in the tire. WAY TO GO!

[oldman]

1. If some people would only read! The very first thing in this thread says I used to run one on a Valkyrie and really liked it!! There is no use in going over and over this. Read some of the other forums on "the dark side". Thank you......
2. I will see if I can put up some more pictures.
3. I am starting at 35# in the tire.
4. Front tire is bias. AND don't tell me I can't do that either!!! I did it before.....so...
5. Port a walls used to look like crap when I was 16, about 100 years ago. Don't know what they look like now.
6. Sorry guys, I just don't like being told it won't work, when it's been done by people a lot smarter than me.

[gibvel]

1. If some people would only read!
4. Front tire is bias. AND don't tell me I can't do that either!!! I did it before.....so...


Some other people need to learn to read. I didn't say you couldn't do it, I asked a simple question as to weather you were going to run a bias or change to a radial up front as well. I've been told not to mix. You Assumed that I was going to criticize you for mixing.

None of my comment criticized your decision to mount anything you want on your motorcycle. Heck, if you want to mount a square tire on the thing more power to you. I was just putting some thoughts out loud down as to how I don't think some of the comments on her can hold water when I (just me thinking in my head, my minds eye) try to logic it out. 2 comments on tires in general and how, design wise the tires probably wouldn't perform the way, on a MC, they were designed to an a car. And how tread actually reduces the contact patch of a tire.

Geeze don't think everyone is out to get you!!

[SteveW]

I have the same tire sitting in my garage right now I just haven't had a chance to put it on yet. I'm glad to see it fits Ok. I was going to go with the 165 - 80 - 15" but the circumfrance was over an inch more so I went with this size.
I have a sidecar on my 2005 so I don't have to worry about leaning in turns. The tire stays flat to the road surface. Now I hope I can get more then 5,000 miles out of the rear tire.

[AmnChode]

Just keeps us up to date...I am rather interested in this ever since I heard about Valks, Wings, and VTXs doing it...Curious as to how it rides on a Venture...

[gunboat]

hi oldman
thanks for the info on runing a car tire on the rear of the rsv. you have stated your runing a bias tire on the front. please let me know which brand and size.
i am now runing metzeler me 880 on the front a 130/90 hb-16 and on the rear a me 880 150/90 hb-15 i have got great service on these tires. i like the smaller tire on the front 'cause i have short legs and this is a heavy bike.
i am going to the '08 international venture rally this summer, and will be pulling a trailer. i would like to try your tire setup.
thanks again
don:stirthepot:

[oldman]

O.K. girls I got the tire on my bike. It is a Goodrich Radial T/A 155-80-15. I put the letters to the left side so when it's on the side stand they aren't noticeable and when I am riding I doubt anyone will see the letters because of the bags. I have plenty of room to have used the next size wider. I am trying to put pictures on here but it's taking longer to do that than to put the tire on the rim. It did take a little time to get the bead to seat properly. I took everything apart and greased it while it was easy to get to. It took 3 tries to hit the u joint with the drive shaft but then it slid right in thanks to all the pictures and hints on these forums.
http://i278.photobucket.com/albums/kk119/cwb47/MVC-015S.jpg
http://i278.photobucket.com/albums/kk119/cwb47/MVC-016S.jpg
http://i278.photobucket.com/albums/kk119/cwb47/MVC-019S.jpg
http://i278.photobucket.com/albums/kk119/cwb47/MVC-017S.jpg
:cool10:
Hope I got the pictures right this time!! Also check out the carpet pad on the floor, sure saves on the knees. And flb_78 got his tire on too. I believe he has his pictures posted under "Car tire on a RSV" Thanks to everyone for your help and opinions.:bighug:

[Stoutman]

O.K. girls....It did take a little time to get the bead to seat properly....


Hey oldman, could you elaborate for me on the reason was it was harder to get the bead to seat? With some of the discussion here someone said the Car Tire bead was different than a Motorcycle Tire. Just wanted to hear what your ideas were here. I'm still on the fence on this one. I'm glad to listen though. I'm not as concerned about saving money as I think would be great to tame that rear brake. Even with Rick Butler's (AKA the Wise one) brake mode kit I can still lock up my rear tire. Probaby something to do with a foot that is used to supporting 300 pounds coming down on that brake pedal with a little extra addrenaline. Anyway, please be safe and keep us posted.

[flb_78]

Hey oldman, could you elaborate for me on the reason was it was harder to get the bead to seat? With some of the discussion here someone said the Car Tire bead was different than a Motorcycle Tire.

The beads are not different. I should have taken a pic while I had mine apart.

Most likely, it was harder to seat up because the tire is stored on its side. This tire is also thinner then the stock size. Mine beaded up pretty quick, but I let it lay out in the sun to heat up. It helps to have a hot tire when it's mounted.

[hig4s]

The beads are not different. I should have taken a pic while I had mine apart.

Most likely, it was harder to seat up because the tire is stored on its side. This tire is also thinner then the stock size. Mine beaded up pretty quick, but I let it lay out in the sun to heat up. It helps to have a hot tire when it's mounted.

Stock RSV tire is 150 cm wide, 150/90-15, I thought you said this was a 155/80-15, should be wider than stock.

[flb_78]

Stock RSV tire is 150 cm wide, 150/90-15, I thought you said this was a 155/80-15, should be wider than stock.

It's the difference in the way car tires and motorcycle tires are measured.

and it's mm not cm

[oldman]

I agree with flb the tire just needed to be warmer so it would be more ply-able to work with. Part of the reason I had a little trouble is my big fat belly gets in the way of my 60 year old body... I used Tire Wet to make the tire slick and slide on easily. Forgot to clean it off the tread real good before going for a ride. Let me tell you it didn't take me long to find an unpaved road to scuff it off. After that it rode fine. I can tell a difference in the curves but it's not a scary, dangerous feeling, just a little different feel. I have to put an enormous amount of pressure on the rear brake to lock it up now.

I am not saying this tire is for everyone, it depends a lot on the roads you ride and your riding style. I am sure this tire will work very good for me. I don't dive into the curves and drag huge chunks of metal off and shower the riders behind me with sparks. If I had wanted to ride like that I would have kept my Busa, and I certainly would not have put a CT on it. Although I did see a picture of one that did have a car tire on it. Other than commuting to work, I usually ride with a small group. We don't ride hard or fast, we just enjoy the ride.

The best thing I ever bought for changing a tire was a bead breaker from Harbor Freight. That thing works good and saves all those 4 letter words for another day.

I will keep you all posted as time goes on about this project. I thank you for all your support. And to those who did not support us on this endeavor, I would like to say........
ah what's the use, you wouldn't understand anyway!! :confused24:

[flb_78]

I used Tire Wet to make the tire slick and slide on easily.


I used................
http://www.viewpoints.com/images/review/2007/181/23/1183263284-02823_full.jpg


seriously, it's the only non-oil based lubricant I had available at the time.

and I need to get a bead breaker...That's the hardest part about changing the damn tires.

[Freebird]

I honestly don't know why everybody has gotten so emotional over this tire issue. I will not put a car tire on my bike. Even if I wanted to, I don't like the tread design on that particular tire and it appears to be about the only choice that is available (at least readily available) in the needed size.

We are all adults here and if any of you wish to run a car tire on your bike, then you have every right to do so. I see nothing wrong with those who don't feel good about it expressing their fears. In fact, I would feel very bad if there were people here who felt that this was a dangerous practice and didn't care enough to say so. I have no intention at ALL of arguing with any of you who have heard the pros and cons, read the information available here and elsewhere and made up your minds to proceed with a car tire. I would not be happy at all though to see this happen with no discussion about any possible safety risks and people come here and just assume that it's an accepted practice and endorsed by myself, this site or everybody here.

If your mind is made up that it's an OK practice, then so be it. If your mind is made up that it could be dangerous, then so be it again. Those whose minds are not made up though deserve to here both sides of the debate.

[oldman]

Has anyone ran a car tire on a RSV? I have a 2000 and would like to find a car tire for the rear. I used to run one on a Valkyrie and really liked it. Thanks, Oldman

Here is the first post. I guess it would have been too easy to expect a yes or no answer, and the correct size. I did NOT ask for any of this other $hit!!

[Freebird]

Yes, a simple yes or no would have been too easy. It was a good question and nothing at all wrong with it. This is an open discussion forum though and when such a question is asked, it generates interest on both sides. Some for, some against, some wishing to learn. There is going to be discussion and there is no avoiding that fact. Nothing wrong with that. I actually think that it was a pretty good discussion and many people probably learned from it.

[1sttenor]

Oldman,
It certainly sparked my interest. I don't think I'm ready today to switch, but I will watch with interest. I plan on asking about this in a year to two, see how many others have made the switch and whether they're convinced. I'm from MO, you have to show me, but I'll listen to differing opinions.
Good luck and enjoy!:080402gudl_prv:

[Steve S]

Don your comments are right on. That is what makes this site so unique, we can agree to disagree without everyone getting too upset. :thumbsup2:

There is one common theme in the threads that disagree about using car tires. The majority of reasons cited are safety issues. That means that we actually care about our fellow Venture riders. Having been in an accident that nearly took my life, safety has become paramout for me. I would just hate to see someone take a chance without hearing both sides of the issue. (Of course my opinions are the ones that are right:stirthepot:).

Oldman, I would like to apologise if my comments upset you. I made my post as a word of caution, not to imply that you were not capable of making a rational decision. In the case of the others, we just love to debate an issue.:whistling:.

Whichever tire you use just be sure to RIDE SAFE.

[MAINEAC]

Now if I only knew where to find some port-a-walls, or some white wall paint, I'd try one. Gotta have my white walls.

WHITEWALL TIRE PAINT (http://www.mbzponton.org/valueadded/other/tirepaint.htm)

[hig4s]

It's the difference in the way car tires and motorcycle tires are measured.

and it's mm not cm


Yeah, mm not cm... Doh!

I didn't realize they measured them differently. But after looking up the official info, the bike 150 is 6.3in at the widest point and the car 155 is 6.1in at the widest point not a lot of difference.

[Gearhead]

FWIW, Boss Hoss bikes (V8 powered) ran car tires in back, factory stock, for years. It appears they have switched to the big custom bike tires that are available now. They used to run low pressure, like 24 lb, to allow it to flex in corners. They were never exactly known for handling, but it worked.

Thanks for the data point - very interesting.

Jeremy

[cowpuc]

Good thread happening here.. Us bikers can sure be passionate about what ever we are passionate about cant we...
TO toss a little gas on the fire I gotta add something. I absoulutely LOVE exploring the Desert regions of our gorgeous country and there is NO better way of getting it done then on a bike.. A number of years ago I was out in Utah and Arizona for 6 weeks doing what I love. I was riding an early model Wing, riding in temps well above 115 and having problems keeping the rubber from my Dunlops on the tires and off the back of the bags - 1500 miles of touring and the bags/fender would literally be covered with rubber.. You guys have all been there I am sure, it was the type of HOT that when you came to a stop at in intersection in Vegas and put your foot down your foot would slide across the pavement while the sole on the boot was melting and if you didnt have 5 gallons of drinking water hanging from the antenna you were in trouble!!!
I ran out of tire three times on that trip and one of the times I did I was out in the desert and had NO clue of a wearabouts for a bike shop.. Pulled into a little car repair joint and rode out with a car tire on the back... Life has taught me something,, ya gotta be careful when you say you will never do something because, at least for me anyway, thats about the time you will be forced into doing what you said you would never do..
Anyway, I discovered something through that Desert experience.. Running car tires in the Desert temps on a touring bike is AWESOME!!! NO more rubber on the bags, tires last wayyyyyyyyyy longer, they are much more resistance to puncture AND, believe it or not - handling in the rain with 400 pounds of Desert rock in the saddle bags was substantially better...
I also use to run a Truck Snow tire on my 650 Yam during the winter time and it did great.. There were a couple years there that I didnt have a car and rode my bike to work all winter and chains on bike tires (or screws in the tires like we use for winter riding now) are a MAJOR problem on a bike on pavement.. I dont know if anyone here remembers (or cares for that matter) the old Walnut Snow Tires?? These tires actually had pieces of walnut shells in them.. Talk about GREAT traction in the snow - and still able to stay upright on pavement!!
Personally, I have always been one to not take some self proclaimed professionals opinion about something I am curious about and I LOVE to find out for myself.. However,, life has also taught me that with stuff like tires and brakes I go about it with a lot more caution then I used to... I had a front tire with faulty bead come off a rim once at speed on a dirtbike and it got ugly real fast - you would NEVER want something like that to happen on a Dresser..
Good discussion guys..
'Puc

[Vermincelli]

I had heard about bikers running car tires many years ago and thought the same as others..it wouldn't work, it's not safe, etc. etc. etc. and never thought about it again. (course I was also riding sporttourers and sportbikes back then too, so wasn't even a consideration)
But the more I looked into it, the more I found that this isn't something new, it's not something radical or experimental. My grandfather who rode with a club did this and so did many, many of his buddies. Custom bikes have run them, The big V* bikes have run them and the more and more I ask around on touring/cruising forums, the more I find that many others do as well.

It's just that they don't really talk about it because of all the people who HAVEN'T tried it think it doesn't work. Why get flamed from people saying it won't work when they all have been riding on them safely for years and many many miles?

I thought about trying it out on my 1st Gen to see the last time this topic was discussed months back but unfortunately the small rear tire and the proximity of the driveshaft to the tire would probably be impossible to do.