Can anyone shed any light on these speedos please, as in what bikes they may be off... I think the larger one is off the A10 but not sure about the smaller 2.
Are repairs worthwhile/economical/available?
Thanks.
I believe the S546/3/L chronometric is for a BSA A10 variant with 1450 revs per mile gearing.
Well worth restoring as they are used by quite a few machines and can be rebuilt and specced for quite a few bikes if needed.
The others will have a market too, I'd suggest lots of pics, maybe test gently with an electric drill and a short length of old speedo cable inner to see if they actually work to help buyers decide.
Same with the chronometric as i'm sure that someone will pay more for a speedo that actually works but needs restoration.
The two smaller ones look like the type found on Bantams and C15s (and lightweight bikes of lesser manufacturers!).
They do have a value but probably not worth getting them refurbed if you're just going to sell them on. I agree a gentle test is in order.
Thank you both. I'm restoring the A10 from boxes of bits and these 3 were amongst it all; hopefully the chronometric is repairable and the position of the speedo needle isn't an indication that it's fubar?
I'm not looking to make anything off them by restoring and selling on, I will test as suggested with an old cable.
Quote from: Stubaker58 on 21 Mar, 2024, 20:55
The two smaller ones look like the type found on Bantams and C15s (and lightweight bikes of lesser manufacturers!)..
Quote from: neil1964 on 21 Mar, 2024, 20:19
I believe the S546/3/L chronometric is for a BSA A10 variant with 1450 revs per mile gearing.
My chronometrics will stay at whatever speed they were reading if you stop driving them suddenly,for example if your speedo cable breaks or you remove a drive quickly when testing them. Simple way to check as someone said earlier is to use,a short length of cable in a drill and gently drive the speedo. You could probably reset it by doing this and slowing down the speed slowly, or by reversing the drive for a second or so.
Quote from: yosemite on 24 Mar, 2024, 00:51
My chronometrics will stay at whatever speed they were reading if you stop driving them suddenly,for example if your speedo cable breaks or you remove a drive quickly when testing them. Simple way to check as someone said earlier is to use,a short length of cable in a drill and gently drive the speedo. You could probably reset it by doing this and slowing down the speed slowly, or by reversing the drive for a second or so.
Thanks.