June 12, 20206 yr 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?
June 13, 20206 yr 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
June 13, 20206 yr You might also try Bultaco Australia or Classic Bultaco in the USA. There would also be a few suppliers in Spain.
June 13, 20206 yr 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.
June 14, 20206 yr 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
June 14, 20206 yr Unusual dimesion? Found it: https://joresa.com/en-gb/about Pitch should be 9.52 (3/8) Roller dia should be 5.08mm Edited June 14, 20206 yr by carl ekblom
June 14, 20206 yr 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
June 14, 20206 yr 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?
June 14, 20206 yr 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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