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Speedometer R51/3

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PeeWee
Posts: 24
Joined: Sun Mar 16, 2014 8:26 am

Speedometer R51/3

Post by PeeWee »

Hi there,
My R51/3 needs a 0,95 with Kilometer scale since I live in Europe.
When I bought it , the bike came with a 1.0 speedometer.
When I decide to restore that ,and use it, can anyone of you tell me how much
it will deviate + or - in relation to the 0.95 ?

Greetings PeeWee

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bm68andreas
Posts: 42
Joined: Thu Jan 01, 2015 3:21 pm

you gonna have 5% difference

Post by bm68andreas »

you gonna have 5% difference
[iKONTOGIANIS][/i]

dosgatos
Posts: 33
Joined: Sat Dec 20, 2014 2:58 pm

1:0 speedo

Post by dosgatos »

I have a speedo in kilometers with 1:0 ratio - the speedo works but the odometer does not. I'll sell it for $50 plus actual shipping. gatomail at mighty dot net
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PeeWee
Posts: 24
Joined: Sun Mar 16, 2014 8:26 am

Andreas : 5% more, or less

Post by PeeWee »

Andreas : 5% more, or less then the 0,95

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schrader7032
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The number 0.95 means that

Post by schrader7032 »

The number 0.95 means that the speedometer cable turns 950 times to register one kilometer. If it says 1.0, then it's 1000 times per one kilometer. The cable turns out of the transmission regardless of what the speedometer is ratioed for. So, if you're road speed is actually 60 kph, then seems to me with the 1.0 speedo, you're going to cover the kilometer in the same one minute, and the odometer will have recorded more than one kilometer. I suspect that the speed registered is also going to be more than 60 kph.

Math in public is dangerous!
Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2
Fast. Neat. Average. Friendly. Good. Good.

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bm68andreas
Posts: 42
Joined: Thu Jan 01, 2015 3:21 pm

if you have 1,0 now you get

Post by bm68andreas »

if you have 1,0 now you get 5% more than you must have ..
only if you have the correct differential 35/9
[iKONTOGIANIS][/i]

PeeWee
Posts: 24
Joined: Sun Mar 16, 2014 8:26 am

Thanks for your answers guys

Post by PeeWee »

Thanks for your answers guys !

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