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kenthetuner2

Bultaco primary chain

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Help please.  I need a new simplex primary chain for my 250 sherpa. In Motion are out of stock is there any where else I can get one?

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Got one years ago from sammy Miller's.still have it in bag.bought it for a 198b.if you still struggle to find one, let me know,hope I dont need it

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You might also try Bultaco Australia or Classic Bultaco in the USA. There would also be a few suppliers in Spain.

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You might be able to buy a length of chain of the correct dimensions and make one. Chains like Regina can be made endless as the pins press in/ out.

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Measurements taken at one original 199B chain

Roller dia: 5.0 (4.98mm)

Pitch: 9.5 (9.46mm)

Inside width: 7.5 (7.52mm)

No of rollers: 52

Clutch chainwheel width is 6.95mm

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The Joresa is not as it use to be, today the company importa Chinese product of bad quality, it is a big problem as there is not a quality chain available, this is probably the reason why In motion does not have the chain available. 

Gentlemen I think we have a big problem! 

Regards 

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A more and more common problem?

These people seem stock some

https://www.francetrialclassic.com/en/engine-spares/68-bultaco-sherpa-250-350-primary-transmission-chain.html

Perhaps Spanish?

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In Motion use chains sourced in the UK, they are waiting for the supply chains to open again following lockdown

I think France Trial Classic are out of stock also

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