Well after 31000 miles and 20000 miles of making 122 hp and hundreds of runs at the track my clutch gave up this weekend. We also took my boss' jackpot to the track on Friday and it ran 11.81 at 113 with a 270 lbs man on it. By the end of the night his clutch was slipping to. So both of us are ordering new clutches and going back to the track to see how much better we can run.
I'm going aftermarket. Stock clutch worked great but I'm planning on some changes so I will need better clutch. I do all of my own work. I work at a automotive machine shop and have been building race engines for 14 years. My bike has hacker 2 into 1 heads that I ported. 495 cams torque tubes and pc3 I done the tune my self its 100 ci. My bosses bike has 495 cams ported heads torque tubes X bow pipe no baffles or cats and it's 11 to 1 compression. It has pcv and I tuned it also. It's a 106