I had that kit on my R6. The 520 chain required 4x as much maintenance, as it would loosen up alot faster than stock. The bike rode at higher RPMs at freeway speeds too, but it wasnt too bad. :shrug
cknode said:Dude . . . that sprocket picture looks horrible!! :eek I don't know what happened there, but that definitely is NOT normal. The aluminum sprockets will wear, but there is no way you can blame broken teeth on the sprocket . . . something else is not right for that to happen.