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Norton Twins Heavy Duty Crankcases

Norton Twins Heavy Duty Crankcases

£980.00

DESCRIPTION

Starting with a set of MK2 850 Commando Crankcases, we have created our own patterns to sand cast these cases but strengthened in the areas where we know they are prone to breaking! Particularly at the top side of the timing case cavity and the upper areas of the drive side.

Cast in fully heat treated LM25TF, they are machined on one of our state of the art 5 axis machines to give a product of a quality that has not previously been available. 

As standard, we make to 750/850 spec, but we also produce our 1,000cc cases where the bores and main bearings have been moved further apart to accommodate the bigger bores. 

All variants can be supplied to " Road" spec which allows the fitting of the standard alloy chaincase, or "Race" spec where the drive side outer is left with 12mm more material on it, for maximum strength - to be used only with belt drive primary & an outer cover only. 

We are currently out of stock of the 750/850 cases, next batch expected completion early 2022. Still have limited stock of 1,000cc cases.

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