Description:

Billet Crank Sprocket Has Three Keyways for +/- 4 Degrees Adjustability. Both Sprockets Heat Treated for Durability. TRUE Roller 0. 250" Roller Diameter Chain for Reduced Friction. 3-Piece Sets Hand-Matched to Qualify the Correct Center Distance and Minimize Runout Model # 9-3100 Item Dimensions: 7. 5" L x 7. 5" W x 2" H.