77-83 GS 400 400cc

the 14" version requires a 17" wheel or larger

Set includes 4x M10 lock nuts and 4x M10 x 40mm carriage bolts

Perfect for re-packing overly loud mufflers with damaged baffles

s s flywheel assemblies for harley temp1421 77-83 GS 400 400ccS&S Flywheel Assemblies for Harley Davidson Milwaukee Eight 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 Milwaukee Eight are the best of the best to build your high performance engine around. Made out of heat treaded 4140 material, harder and more than twice as strong