thanks alot for the part number and explaination- i forgot about the different spokes. sounds like a better deal to get the whole wheel. what is the widest tire you got on the new one? i have 140 MT21 on there right now. someone before me cut out the chain guard to run that tire. I do not like the mt21 either- wears too fast. i might as well have a trackmaster 2- get about the same miles...