Endureon Chain Wheel with 5/16" Bearings, for 520 Chain Front End 5-3/8" distance from center of

5-3/8" distance from center of hole to center of hole

Hyper Racing # 03-200

Hyper Racing # 047-126

Hyper Racing # 141-525B

Endureon Chain Wheel with 5/16" Bearings, for 520 Chain Front End 5-3/8" distance from center ofHyper Racing # 08 8055 Hyper Racing's exclusive Endureon Chain Wheels fits almost any chain tensioner and has several defining characteristics that make them stand out from the competition. Larger in diameter to greatly increase life and decrease rolling resistance. Made from tough dual monomers that have 6 carbon atoms, (C12H22N2O2) otherwise known as Nylon 6 6. This material is more expensive, but we think it is worth it. Undercut where feasible to