i cracked my rear hub the other week! the warranty is 5yrs but you WILL need proof of purchase! best thing to do is strip down the wheel, remove the hub body(so they dont see the tell tale trials abuse marks on the hub shell!!) and send it back to Evolution direct or through your local king stockist. Do NOT mention trials, do not say anything about the spoke lacing unless asked! i did all of the above and received a new hub shell, in fact because they didnt have any classics they sent me an ISO instead! woody