BSA/Triumph Piston B25 & TR25 +060
BOA88. 40-0970+060
BSA/Triumph Piston B25 & TR25 +060
Bore: 67mm +060 (=68.5mm)
Piston Clearance 0.12mm or 45thou
comp. ratio 9.25:1
Bore: 67mm +060 (=68.5mm)
Piston Clearance 0.12mm or 45thou
comp. ratio 9.25:1