BSA M20, fits also other Mod., Length end to end: 140 mm,
Thickness 20.3 mm
Wire size 3,2 mm
new old stock
midle hole to midle hole 5"
only rigid Mod. from 1937-1957
NOS, Bsa Original X WD
Villiers Piston +060 1931-1938 346 c.c. Long Stroke, XIVB. YZ Automatic Lubrication (G. Pin Parallel to Deflector) +60 = 71,5 mm With Piston rings,without Gudgeon Pin and without Circlips used