Corrrect Speedo for a D3 Bantam

[doughobbs]

Hey folks,

Which scale is the correct one for a D3 Bantam (a D shaped smiths speedo) - 55, 65 or 70 mph? Am trying to find out for a friend with a D3 and we are seeing images of all three speedo's on the web!

thanks

Doug

[R]

This would seem to indicate that the speedo for the D1 to D3 was the same.
https://www.classicbikepartscheshire.com/speedometer-tachometer-c41/bsa-bantam-d1-d3-genuine-smiths-speedometer-0-55-mph-refurbished-p3062

The later 150cc and 175cc ones would likely require a few more mph on the scale ...
Hopethishelps.

[TGR90B]

You can discount the 70mph speedo as that was reserved for the C12. I wasn't aware they made a 65mph job (could be wrong) so that leaves the 55mph one for the older Bantams (D1/D3).

[R]

D14 Bantams apparently use an 80mph Smiths

https://www.classicbikepartscheshire.com/images/smiths-instruments-bsa-bantam-smiths-replica-speedometer-0-80mph-complete-with-fixings-p3638-7043_medium.jpg

[Rex]

But they were cheap round magnetic things, and not D shaped Chrono's.

[R]

Quite so. But I was putting them in context.