i want to race some longer races, maybe a baja or two. i did an online search of what it would take to get a yz450f ready and came up with nothing. i know most everybody rides a honda of some sort(for baja length races), i am guessing that this is dues to the oiling system. would you grenade a yz if you tried to ride it for two or three hundred miles non stop? realisticaly, do they do oil changes during races like that? i have the wr tranny in my yz and love it, i just dont want to take it into xr territory and destroy it. if i am way off, please let me know. i love my yz and want to make it a destoyer of the 450X, i just need some guidance. any and all help is greatly appreciated.