Thanks Goose, I have the front one mounted, balanced and back on the bike.... did it this afternoon after I got off of work. The discs definitely needed to come off, no way were they going to fit on my changer. No big deal, just have to make sure you have a good quality torx bit to avoid mucking up the rotor bolts (real easy to do if you're not careful). This was my first tire change, it was a piece of cake with the NoMar mount/dismount bar (along with watching the video/demo). I'm headed back out to tackle the rear wheel. FWIW, when I removed the front wheel, I checked the balance of the original tire (6,000 mi. on the factory Bridgestone) and it wasn't all that close...clearly a heavy spot. Not sure if the selling dealer does this when setting up the bike or if it's straight from Yamaha..either way it's balanced correctly now!! I bought a balancer from NoMar, it works like a charm!! Thanks for the reply, Larry