chris_s wrote:what's the cost on this NSR-World crank? is it a balanced and knife edged crank, with new bearings? or do you send in your old crank and they replace bearings and balance and knife edge it?

Yes you send your crank in, no its not knifed edged. Everythings moved on a bit since racing Bantams and Villiers.

The cranks are rebuilt with new bearings and seals and then trued.
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If I have to take the carbs off once more...