EXEDY Racing Flywheels are made from solid one-piece billet chrome moly steel or chrome moly steel forgings They are specifically designed to reduce weight and inertia for better engine response.

Most incorporate special design features to enhance the air flow to improve the cooling of the clutch. The ring gear teeth are milled onto the flywheel unlike an aluminum flywheel where the ring gear is pressed onto the flywheel which has the possibility of separating from the flywheel.

Exedy Part No	Weight	Intertia (kg-cm-sec2)	No. of Crank Bolts	Ring Gear Teeth	Material
FF01	12.8 lbs	0.66	8	124	Billet Steel
HF01	9.1 lbs	0.39	8	112	Billet Steel
MF01	11.1 lbs	0.48	7	106	Billet Steel (Pot Type)
NF02	13.9 lbs	0.79	8	108	Billet Steel
ZF01	10.8 lbs	0.62	6	125	Billet Steel