Here it is! An inexpensive 2-wheel kit that uses your stock wheels! Save 2 lbs!! Available for most Arctic Cat, Polaris and Ski-Doo models! Part #BD-20001 : Fits M Series '06-Up and many F Series Models. .Please make sure bearing ID size is 20mm for this kit to fit properly. Part #BD-20001-POL : Fits most Polaris models '06-Up. Part #BD-20001-XP : Fits most Ski-Doo XP/XM/XS chassis sleds.