Triumph / BSA Belt Drive Drum , SteelTriumph T100 T110 TR6 T120 6T 5T T140V 5TA Daytona Bonneville TropheyBSA A50 A65 A10 A10 Gold Star 4 Spring Made in EnglandPlease look at all pictures
Compr. ratio 8.25:1
complete
Price per Pair
+080= 72 mm
Gandini
for Iron and Alloy Head 1950-62
including gudgeon Pin, piston rings and circlips
Piston Clearance 0.12mm or 45thou
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 topmeasurements see last pict. please and techn. data