AJS/Matchless/Velocette/Ariel/Norton/Royal Enfield Speedo Drive 2:1
AJS/M. Rigid 1937-1950
also can be used f. other Models-need larger hole. Hole diameter 16 mm
If mounted on rear wheel - right hand side- output drive forwards on top- the cable turns clockwise
If mounted on front wheel --left hand side- output drive upwards-the cable turns anticlockwise
This can be used for WM20, but it depends, which speedo is fitted, clockwise or anticlockwise.
Hepolite BSA Piston 10962 NOS
PAT N°616820 3602 AM4/3
71mm = STD
Compression High: 30mm
Gudgeon Pin DM: 19mm
no piston rings
no gudgeon pin
no circlips
Please view ALL pictures
not all pre War 350 Mod.