Cart 0
BSA/Triumph Piston B25 & TR25 Std.
BSA/Triumph Piston B25 & TR25 Std.

BSA/Triumph Piston B25 & TR25 Std.

BOA85

BSA/Triumph Piston B25 & TR25 Std.

Bore: 67mm

Piston Clearance 0.12mm or 45thou

comp. ratio 9.25:1

We Also Recommend

Triumph/BSA Oil Pressure Relief Valve

Triumph/BSA Oil Pressure Relief Valve
Triumph Oil Pump Gasket PRE UNIT 350,500,650 cc

Triumph Oil Pump Gasket PRE UNIT 350,500,650 cc
Triumph T120,T140,TR7V OIF Sump Gasket

Triumph T120,T140,TR7V OIF Sump Gasket
Triumph Camshaft Exhaust T100C.1968-71. T100T

Triumph Camshaft Exhaust T100C.1968-71. T100T
Triumph Early Rocker Spindle 3/8 x 26TPI 1944-72

Triumph Early Rocker Spindle 3/8 x 26TPI 1944-72