The Price !!, lol. The kit works quite well, the only thing that was "different" for me was the lag when shifting gears 'cause you need to or should drop the rpm's some but I never shifted that much. I would not use the Staton "cups" that come with the kit, they stripped out a bike on me, he does not cut the threads properly.He has another brand that work great, they are black in color, had no problems with those. Also, no real instructions. It's not that difficult but something would be better than nothing. Thats about it really.