Our flywheels are designed primarily to cut down on rotational mass. Less rotational mass will allow your eninge to rev quicker, and get up into the revs where Fiat engines make the most power. 

Flywheels with 12mm crankshaft bolt holes are for late 1756 and 1995 Fiat engines. Early style flywheels can be made with 10mm holes for early 1756 or 1608 Fiat engines. Please specify which you would like.

Friction surfaces are bolt on and replaceable.

Requires a core ring gear in order to manufacture.

Flywheel Weight: ~9.5lbs

Interial Specs: 158lb-in^2 (This does not include clutch)

Ring gear core charge add $60.