I found this beauty on ebay, he has a few others for sale as well. caveat emptor! and all that.

https://www.ebay.co.uk/itm/1962-BSA-A10-PROJECT-BIKE-ORIGINAL-NOS-RESTORATION-BIKE/282705714315?hash=item41d292dc8b:g:d6cAAOSwH-dZ7lc8

Hi all,

What are the options for a gearbox driven speedometer?

is a used chronometric @ £250 plus the only option?

its for a Tribsa project but also have an A10 with similar lack of speed monitoring issues!

kind regards

derek

Is it only me or is there a lot of mechanical knowledge required to owning and running an older British bike? mainly Bsa, Triumph etc before 1975 although applies to other marques as well.

I mean that you generally have to have a pretty good idea of what is going on inside the engine of your bike to be able to diagnose or preempt any future or current issues. (or have access to somebody who does!)

there seem to have been a lot of posts lately from owners with what sound like pretty serious in some cases, problems with there bikes. I am lucky that i can spanner a bit and have access to a lathe and welding kit etc as well as good circle of knowledgeable friends of same interests.

Just a thought.

any tips?

I have so far managed to get the inner bush out of 1 side and gave up, apart from brute force and ignorance is there an easier way to remove them?

yours in anticipation,

derek

Bought a set off ebay and was looking at them today, noticed unusual material!

realised it was metal filler picked it off to reveal chain rash!

I know the parts are old but why conceal it? Well i know why but thats a different story, easily welded i guess.

Derek 

This may not have a simple answer but i will ask, i am having new valve seats cut on A7 cylinder head (for A10) and the guy doing the work asked if i knew what depth the valves go to in the head, is there a BSA value for this? or is the the other way of looking at it is how far does the stem stick out of guide at rocker end.  I guess this info would be on the engineering drawings but i appear to have mislaid mine.

The valve seats have worn and he is fitting new inserts and recutting them.

cheers

derek 

I managed to pickup front and rear Ariel hubs for A10 today at SCRMC autojumble, what are members opinion on these as opposed to the Bsa fw hubs, I will have to get them built up into wheels before i can use. I always thought the Ariel hubs looked quite good. thanks derek