Boss Bearing S-ATV-RR-1004-4D2-12 Rear Wheel Bearing and Seals Kit LTF500F LT-F500F Vinson 2002-2007 Please note: This kit features an improvement in the standard OEM design. We are using 2 bearings in the place of the original 1 bearing setup per wheel for better durability All Bearings feature low-drag double lip rubber seals on both sides. Double sealed bearings outperform metal shielded bearings because they keep out dirt and water. All Seals are double lip and rubber encapsulated with internal stainless garter spring for maximum sealing performance. A FREE helpful installation tip sheet will be included in all wheel and axle kit purchases.