I have been looking into an Alton Dynamo replacement alternator for Ariel Huntmaster 650cc 1958, firms selling it claim that the one made for the A10 fits the Huntmaster, had an A10 in the early 70’s
and they look similar (from memory 
)Has anyone had experience of fitting one of these to a Huntmaster?
PS the cheapest if found is £426.95 inclusive of delivery
Thanks in anticipation
Reg
