Weighing just 2.6kg this competition flywheel is to suit Cosworth/Ford BD Series engines with 12 bolt cranks. The flywheel is machined from a chrome moly steel billet with a 104 tooth integrally cut ring gear for the lowest possible moment of inertia. They are designed to allow the use of 7 1/4" (184mm) step fitment competition clutches.
The clutch mounting holes are tapped M8 please refer the associated products link below for suitable clutch to flywheel mounting bolts.