As much as i like 2 strokes stick with the raptor. There isnt as many upgrades for it, but your better off buying a 400+ when he outgrows the blaster/raptor kinda bike rather than upgrading them. I dont think theres anyway he blew the clutch up already, he must ride it everyday and do clutch wheelies non-stop to have that thing worn down already. Ive had my shee since the end of 03 and rode it almost everyday on pavement doing wheelies and i still have yet to have the clutch slip. As for tires, there cheap and well worth the investment.