and require the use of a custom rear brake caliper and caliper bracket

Fits 1966-1978 Shovelhead rear chain models

Fits 1985-86 HD Big Twin Evolution with 5 speed transmission

For 39mm Narrow Glide Showa Forks

Replacement Dished Sprocket - Chrome - 49 Tooth - 1973-1985 Harley-Davidson Big Twin 1979-81 XL Thread Size_10MM and require the use ofThis Replacement Dished Sprocket has 49 teeth and stock 6mm offset. This sprocket fits 5 speed models and replaces Harley Davidson OEM# 41470 73 (stock 51 tooth sprocket). See Additional Information below for fitment. High grade carbon steel replacement rear wheel sprocket 1. 9" center hole Chrome finish