I`m going to be getting new tires soon. I know what brand and model I`m going to get.What I am looking to do is go from a 110/90x19 to a 120/90x19on the rear. This is going on a YZ250 what I need to know is how this will affect the way the bike will accellerate and just plain handle. I ride woods about 98% of the time the rest is in the dunes. Thanks for any help you can give.
As long as the 120 won't hit anything when your shock compresses, you should be fine. I have heard that anyone except a Pro level motorcrosser can't tell a difference in handling between a 110 and a 120.