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#106
Pre War / Re: B21 Speedometer
28 May, 2019, 22:28:51
Ah, thanks for the information chaps.  So, likely to be the wrong hub and the wrong wheel (no gear).

Now, where to find the right bits and, oh yes, a nice chronometric to go with them that doesn't cost a small fortune?

Alan
#107
Pre War / Re: B21 Speedometer
27 May, 2019, 13:57:59
So what lies behind the mesh?  Is there a gear to drive the speedo?

Doesn't look like it.  All I can see is the bearing housing (presumably), a brake shoe and a brake shoe spring.

Any ideas as to how or where the drive is or should be?

Alan



#108
Pre War / Re: B21 Speedometer
22 May, 2019, 22:19:27
Thanks Bevan,

Ah, so this is looking like a likely mounting location then.     

I'll have to investigate further.

Alan
#109
Pre War / B21 Speedometer
21 May, 2019, 21:13:10
Hi, I'm very new to the forum and BSAs, having recently acquired a '39 B21.    I'm sure there will be many questions but to kick off;

It suddenly struck me after a good "look-at" that there is no speedo on the bike - I'd been hoping for a lovely Smiths Chronometric which I happen to think is an amazing instrument.   More importantly, I also noticed that there appears to be no speedo drive gearbox fitted to either wheel.

1) Is it likely that the bike did not have initially / has never had a speedo? (I don't know when it became a legal requirement to have a speedo)

2) Is there a cunning speedo drive output from the final stage of the gear box lurking somewhere?

3) If there is no provision for a speedo drive originally, is it possible to fit one and is it easy to do?

Otherwise I'll have to go down the route of crafting or purchasing an electonic replica.

Thanks in anticipation.

Alan