i wouldnt go with a 10 inch rim. there seems to be alot more tires out there for a 9 inch rim. with a 9 inch rim you are gonna get more sidewall and if you are runnin in the trails and shit, thats what i would get. i have 10 inch rims on my predator and i have popped tires off the bead before. i dont know if its because there is hardly any sidewall with a 20 inch tire or what, but its a pain in the ass. stick with 9 inch.