NEW Lightweight steel flywheel for Lotus Twin Cam or Cosworth BDA. 8.5lbs/3.7kg. 110 teeth. 12-bolt. Solid. 

PLEASE check your application and make sure this is going to work for you. 

Clutch disc measurement is approx 7-5/16" from outside edge to outside edge.

Pressure plate holes are approx. 7-15/16" from bolt center to bolt center.