R51/3 - 1952: Which speedometer should I order?

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Re: R51/3 - 1952: Which speedometer should I order?

Post by schrader7032 »

I work, as a hobby, on mechanical clocks from the 1900s. They are obviously more closely designed and must be repaired precisely. It is a travesty to take one of those clocks and dunk it in something or spray with a cleaner and usually results in a clock that doesn't run. I would suggest that you not just dunk this in something in hopes that it runs. Typically they are not designed for the average person to work on. IMO. But if you wanted to try something go ahead, but if there's any hope of saving it, personally I'd find a trained repairman to service the speedometer.
Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

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Re: R51/3 - 1952: Which speedometer should I order?

Post by wa1nca »

Micha wrote:
Fri Nov 20, 2020 3:22 am
wa1nca wrote:
Thu Nov 19, 2020 1:59 pm
The solo rear end ratio for r51/3 should be 39.9 and speedo for km should be w.95 and mph 1.52 according to the chart Kurt posted
Hi Tommy,
Shouldn't it be 35:9 for a solo bike?
Yes 35:9
Tommy Byrnes
54 R51/3 55 R50/Velorex 560 sidecar 64 R27 68 R69US
Ashfield, Ma

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