I put a set of ITP 22-10-11 rears on my bike a while ago,, they are amazing on the trails,, but the bike under steered bad {worse } I put some razor fronts on which helped a bit,, but I found the perfect answer to the XX understeer problems,,, 1.5 inch spacers on the front !!! so the bike gains 1.5 inch out each side at the front,,, they are just off my 450r and fit perfect!!! if you like going fast and turning U need to make this change to your bike!!!