All dynamos fitted to MO1's have a parallel shafts with 2 keyways either long 60W or the short 45W.

Hi Tim,

Thank you; that explains it. I've been over-thinking this one.

The HM-LO dynamo I have has an externally threaded, tapered armature shaft. One parts provider refers to this as an esrly BSA type, which I mistakenly assumed to include the WM20.

Back to the auction site...

Some dynamos as on my coil ignition C10 have a different shaft to take a chain sprocket. Ron

email (option): ronpier@talk21.com

Hi Craig
I have Dynamo pinions
If you can’t find locally
Am over for shepton mallet weekend after next
Br
Jo’b

email (option): jonnyob1@googlemail.com