This adjustable cam sprocket allows precise cam timing without elongating bolt holes. It also allows advancing or retarding the cam to tune the power range with engraved timing marks to show degrees of advance/retard. The teeth of this sprocket have been induction hardened for durability. For use with a double-row timing chain.
Fit Note: The original Triumph GT6 sprockets and chain are single-row. This double-row adjustable cam sprocket may be used as an upgrade along with a double-row crank sprocket, chain and tensioner.