BSA Piston 250cc C10/C11/C11G/C12 +040 = 64 mm

BSA Piston 250cc C10/C11/C11G/C12 +040 = 64 mm

B139/040. 29-2570

€92,90

BSA 250cc

Piston Assembly complete

Piston Clearance 0.12mm or 45thou

Compression Height: 25.2mm

C11 1939-55

C12 1955-58

can also be used for C10, even if they usually had a flat top

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