Cart 0
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm
BSA C10/C11/C11G/C12 250cc Piston STD 63 mm

BSA C10/C11/C11G/C12 250cc Piston STD 63 mm

B137/STD.29-2568

Piston Assembly complete
BSA C10/C11/C12 Piston Std.
incl. rings, gudgeon pin, circlips
STD= 63mm  
Piston Clearance 0.12mm or 45thou
C11 1939-55
C12 1955-58
can also be used for C10, even if they usually had a flat top

We Also Recommend

BSA Transfer for Tank/Headstock/Toolbox to 1953

BSA Transfer for Tank/Headstock/Toolbox to 1953
BSA Gearchange Rubber for A,B,C,M Models

BSA Gearchange Rubber for A,B,C,M Models
BSA Piston 250cc C10/C11/C11G/C12 +040 = 64 mm

BSA Piston 250cc C10/C11/C11G/C12 +040 = 64 mm
BSA Transfer Tank 1933/39

BSA Transfer Tank 1933/39
BSA Tank Transfer 1937/38

BSA Tank Transfer 1937/38