BSA M20/M21 Inlet and Exhaust Valve. Pair
DBL10.66-0235.66-0236.66-1435BSA Inlet and Exhaust Valve M20/M21, not English
1937-1957
Exhaust valve 66-0236
Diameter Head 41.3 mm
Length 144 mm
Diam. stem 9 mm
Inlet Valve 66-0235
Diameter Head 44 mm
Length: 144 mm
Diameter Stem 9 mm