Norton Twins Camshaft Timing Chain (1) 06-7689 - 500 / 650 / 750 / 850 - (Andover)

A stretched timing chain can not only be dangerous if it where to break but it can also alter the cam timing (advance or retreaded) a few degrees. A change in cam timing will hurt your engines performance.

This cam timing chain is made in England by Andover Norton. Replaces Norton part number 06-7689 and 067689. Fits all Norton twins (Dominator, Atlas, Commando, Roadster, etc) up to approx 1975. Please refer to your parts catalog for proper fitment.