- 2mm thick

Width: 64mm CC

add the matching Throttle Boss (sold separately)

Timken inner and outer cam bearings replacing H-D #8990 & #9198

This shirt is available in several colors

s s flywheel assembly for harley twin cam Fits:80" fuel injected Evo BT engines (4-1/4" stroke) - 2mm thickS&S Flywheel Assemblies for Harley Davidson Evolution Big Twin Engines The flywheel assembly is the heart of any performance engine and S&S has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of, these flywheel assemblies for the Evo Big Twin are the best of the best to build your high performance engine around. These crankshaft assemblies for Evolution Big Twin are a direct replacement