2000 KX250 rear,with an 03 KX250 front.There's a thread on exactly how to cut the rear,just do a search and you'll find it easily.I had to modify my front number plate a little to fit the front fender good...that's if you keep the stock KX500 front number plate,which I did.Total time to do everything was roughly an hour,just go slow and don't over cut...just cut a little,put it in place and mark where you need to cut some more.