AJS/Matchless Pistons/Pair 498 cc OHV Twin. Mod. 20. G9 STD. -1955/Pair Spring Twin. Super clubman STD = 66mmCompression Ratio 7:1Price per Pairincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures
AJS/Matchless Pistons/Pair 498 cc OHV Twin. Mod. 20. G9 +020 -1955/Pair Spring Twin. Super club man +020 = 66.5 mmCompression Ratio 7:1Price per Pairincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures
AJS/Matchless Pistons/Pair 498 cc OHV Twin. Mod. 20. G9 +040 -1955/Pair Spring Twin. Super clubman +040 = 67 mmCompression Ratio 7:1Price per Pairincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thouPlease look at all pictures