aj_law
Go Kart Champion
My guess would be the wheels. Try swapping the rears to the front and see if it changes at all. That'll give you an idea if it's the wheels or something else.
+2.
Agreed.
Try switching out the entire set if you have the ability (i.e. you're running aftermarket and have the stocks lying around).
If you were local to me, I'd let you try mine out as I'm getting ready to throw on the winters. Maybe somebody closer to you would do you the same...? Worth a shot.