i had some trouble with the cluster inside. now it works good again.Wombolts.. my mates seem to have a problem with them coming loose. And another bad thing with them if you wreck the spindle.. the drive side is attacked to the spindle so you in a bit of crap then (unless a new one can be pressed in?) But on the other hand.. dam light and hot looking cranks. Dont come with a bb (29.4oz without a bb)