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#847283 04/27/21 2:24 pm
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wayno Offline OP
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Vintage British Cables/ SmithCables//Would any one happen to have a contact phone# for these guys? recently purchased speedo from them and its not calibrated showing very slow speed. I can find their website easy but it doesnt allow me to Send msg's for e mail contact and no phone# is given. Is calibrating possible on my end? or is this a return to dealer problem? any experience on this matter? Thanks, Wayno

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wayno #847285 04/27/21 2:27 pm
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Originally Posted by wayno
Vintage British Cables/ SmithCables//Would any one happen to have a contact phone# for these guys? recently purchased speedo from them and its not calibrated showing very slow speed. I can find their website easy but it doesnt allow me to Send msg's for e mail contact and no phone# is given. Is calibrating possible on my end? or is this a return to dealer problem? any experience on this matter? Thanks, Wayno
Are you running correct speedo drive?


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
wayno #847286 04/27/21 2:29 pm
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Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
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wayno #847287 04/27/21 2:32 pm
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Try Tel no 403-580-4217 , you will need intl dial code

On Ebay they are Smithscables and they are on facebook

wayno #847291 04/27/21 2:50 pm
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I've only ever bought cables off them but found them good to deal with. I usually email.


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (undergoing restoration)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

Beach #847295 04/27/21 2:57 pm
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wayno Offline OP
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OH, very much rookie here. That would be at the wheel Correct ? and how to check what i have and what i need?

wayno #847297 04/27/21 3:01 pm
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wayno Offline OP
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Thanks all, I will research. Maybe previous owner did change out drive. I'll have a look. No, Duh! Assumed this unit would be calibrated for replacement of orig 150mph down to the new 120mph. So I will need to replace drive gear. recommendations where to get right gear??

Last edited by wayno; 04/27/21 3:49 pm. Reason: not researched enough before asking question
wayno #847316 04/27/21 6:59 pm
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The calibration is derived by the ratio of the Speedo gearbox. 120mph speedos usually have a 2:1 drive, 150mph ones usually have 15:12 (or 1.25:1)

When you remove the rear wheel drive gearbox it will say on the brass ring which ratio it is.

Also to verify which Speedo you need, on the face of the Speedo it will have a number, if it says 1000 then you need the 15:12 box. I think the one for 2:1 says 1600 but I cannot be sure.

Last edited by Allan G; 04/29/21 11:49 am. Reason: 2:1 speedo gearboxes have "1600" Speedometers, not 1500

Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (undergoing restoration)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)

Allan G #847355 04/28/21 1:48 am
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wayno Offline OP
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Great, thanks very much. heading out to garage pull speedo gearbox

wayno #847371 04/28/21 8:38 am
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Just to be sure, we are talking about a speedo gearbox which is fitted to the rear wheel spindle?


Now let’s all have a beer beerchug

68’ A65 Lightning “clubman”
71’ A65 823 Thunderbolt (undergoing restoration)
67’ D10 sportsman (undergoing restoration)
68’ D14 trials (undergoing transformation)


Moderated by  Allan G, Jon W. Whitley 

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