1. Protect your performance cam with precision machined broned gears. 2. Bronze gears are recommended for steel billet mechanical roller tappet cams and slot hard-faced steel billet mechanical flat tappet cams. 3. Bronze gears absorb the increased wear in special cams and magnetos and are easily replaced before costly damage to the camshaft gear occurs. 4. Gears are precision-machined from quality aluminum silicon bronze alloy for maximum wear resistance. 5. Size: 0.5 inch
