my buddy got a new 08 zx10 in march rides it everywhere back and forth to work some wheelies and stuff but nothing real hard,,street riding only,, just hit 6300 miles clutch basket and 1 fiber plate broke dealer does not warranty "wear items" $700 and 2 weeks down waiting for parts still...i had a zx9 beat the hell out of it and never broke a clutch same with my 12