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Sidecar sprockets

Hi guys, I’ve attached a sidecar to my 1942 WM20 and am not happy with the 19 tooth engine sprocket. I’m curious if anyone has experimented with different sizes and what works best. I’ve ordered a 18 tooth and I see that 16 and 17 are available. Interested to get some idea from someone more experienced than me before I go shortening my chain.
Thanks again.

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Re: Sidecar sprockets

I accidently replied to this in your other thread. Here it is again. Ron

In the parts list for the RAF outfits, a 17T sprocket was used. But they did tend to under gear stuff back then. I think I'd try the 18T. Ron


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