BSA A65 650 Piston Set - JCC - 1962-72 Piston Size:+.060 3125" roller width

3125" roller width

as you would expect from English made parts

"2" 68-0081 Cylinder Head Stud Long 3/8" X 20 X 3 1/8" X 26 (BSF / BSC)

A75 & Trident) from 1968-1976

BSA A65 650 Piston Set - JCC - 1962-72 Piston Size:+.060 3125" roller widthComplete your BSA 650 top end job by installing a new set of JCC Hepolite pistons. We have found JCC Hepoite pistons to be more consistent than any original or "NOS" piston. JCC pistons come complete as shown (sold in sets) with pins, clips and pistons. We also offer new Hepolite pistons W ring sets in this same listing Compression ratio is 9: 1 which is standard for most applications Fits all BSA A65 unit twins (Lightning, Thunderbolt, Spitfire,