My RS85. About 90% right - could probably use a different pipe. Just a little dead spot in the power band that you have to short-shift around once or twice at certain tracks. Others: dead on. Research tells me that an RLV TC4 would do the job. Recent top end, 147psi compression. F1 bike in OMRL, has run consistent 52s at CRP with my slow butt on it. Clean swap with no modifications to the frame. Solid little bike. $2,500, can post video of a blast up the street if anyone is interested.