rims
I got all different size rims on my 300's and they work , all the rear tires are 25's but I have 9 , 10 , 11, and 12 inch rims , some tires are 10 inches wide some are 12 , I had to use wheel spacers on the 9" rims as the wheel was 1/4 inch from the exhaust but that bike does have a 250 rearend in it , if I had to buy wheel spacers new I think I would just get rims instead , the spacers are pricey and I have never had one loosen up yet but think it is a good possibility that it can happen ----- the offset is important to get a proper fit ----- if you have to get rims I think the best rim size to get is 12 as there are more options for tire sizes and the prices are cheap on 12 inch rim size tires than say 9 by $15 a tire on the ITP's , I just went thru that