All Yamaha's use 10mm mirror bolts. I installed Rizomas on my R3 and they were definitely 10mm.I swear they can't be 10mm because I tried to screw in a 10mm mirror and it was too big.
Cool! Boom!Thanks for the reply Fang, I eventually got it. Thing just had to be aligned super perfect before it caught on the thread. I kept spinning it in a circle over and over I swear I thought it was too big but I tried again and it finally took. This was the left side so I knew I wasn't messing up the rotation.
Stirz, move this thread to the Problem Solved Boards! Just kidding.