The StNeots guys were next on my list of people to speak to. They are just up the road from me so been meaning to pop in and have a chat, they are advertising nx5 rebuilds but I know they have restored nf5's before so they might have some solutions.

I have a spare nf5 crank that I want to get disassembled so can have a measure up. They are very similar to the mc18 r2j crank and I know bearings and seals are available for those so hopefully some interchangeability.

Les is there a guy on the NATS forum who has rebuilt cranks?

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