Thanks for the information, living in Sweden and i have bought a a10 Golden Flash from 1951, the cylinder and cylinderhead is a10 but it turned out it was with a crankshaft from A7 so the compression was a little bit low
. i have bought an A10 crankshaft which I will send for grinding.
Front and rear mudguard is also wrong and the rear mudguard brackets are missing, someone who have these parts and would be willing to sell?
Also have a BSA M22 that has been renovated.