US$ 11.01
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This new auto advance spring set has the right tension which will allow your motorcycle to rev smoothly throughout the RPM range and smoothly at idle
Measures 1/16 (
Fits BSA Pre-Unit Twins from the A7 & A10 from 1962-1963
Norton Twins Camshaft Timing Chain (1) 06-7689 - 500 / 650 / 750 / 850 - (Andover) Triumph Free Shipping in the USAA 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.