We're tracked down a needle type Ruby speedometer with a steady needle at a sensible price.
Thank you for the advice and guidance. Good to know a special speedo drive cable for a special is easy to get and maybe even possible to adapt. A little gearbox could be home made, and meccano has an big appeal vs getting out the RS catalogue or tracking down whatever gear specialist. "Governor type" speedometers are something I'm now going to find out more about, and if a nice one popped up in a jumble somewhere I'd no longer fear a refurb.
As to the "will a three speed box drive it" maybe it won't, but we'll cross that bridge if and when we come to it....
On another thread we're pondering "diesel type" tachs (he has a mag engine, mine which he might use first has a coil) and mechanical drives.
Interesting that a speedometer can be turned into a tach (as with so much "when you think about it", of course...)
Aside from the "will a 3 speed box drive a ruby speedo ok" question I'm also fascinated by the idea of these Indian "Royal Enfield" or repro Smiths units... A friend speaks highly of them as properly made and reliable with "protective chrome", items made to perform a task, vs what he thinks of as "a chinese type of replica" which might have a brilliant shine, that doesn't last, and poor calibration and reliability.
Thank you for the advice and guidance. Good to know a special speedo drive cable for a special is easy to get and maybe even possible to adapt. A little gearbox could be home made, and meccano has an big appeal vs getting out the RS catalogue or tracking down whatever gear specialist. "Governor type" speedometers are something I'm now going to find out more about, and if a nice one popped up in a jumble somewhere I'd no longer fear a refurb.
As to the "will a three speed box drive it" maybe it won't, but we'll cross that bridge if and when we come to it....
On another thread we're pondering "diesel type" tachs (he has a mag engine, mine which he might use first has a coil) and mechanical drives.
Interesting that a speedometer can be turned into a tach (as with so much "when you think about it", of course...)
Aside from the "will a 3 speed box drive a ruby speedo ok" question I'm also fascinated by the idea of these Indian "Royal Enfield" or repro Smiths units... A friend speaks highly of them as properly made and reliable with "protective chrome", items made to perform a task, vs what he thinks of as "a chinese type of replica" which might have a brilliant shine, that doesn't last, and poor calibration and reliability.