BSA M21 Piston +060
B166.060. 12659. 66-1190/060. 70-8157BSA M21 Piston +060
with gudgeon Pins and Rings
060= 83.5 mm
Replica
Compression height: 31 mm
Piston Clearance 0.12mm or 45thou
BSA M21 Piston +060
with gudgeon Pins and Rings
060= 83.5 mm
Replica
Compression height: 31 mm
Piston Clearance 0.12mm or 45thou