Hepolite Austin Type 63.499mm 2.5” +.020 Piston Ring Set No. 1945 Maybe 10/4 ?

Matchless Ajs Hepolite 72mm +30" short stroke Piston. 1956 onwards

Triumph T140 75mm STD Piston 71 3349 NOS Hepolite With Rings And Pin

GENUINE NORTON COMMANDO 850 0.010 OVERSIZE HEPOLITE PISTON RING SET (2) 06-7959

Matchless / AJS Piston Rings NOS

calthorpe Piston 72mm +40 7264 350cc Ohv 1937/38 Nos But See Pics

Hepolite Piston Ring Set Triumph T140 / TR7 750cc STD 76mm 1972 onwards Standard

Triumph 3T 1945/51 348cc NOS Original OE 1780 std (Hepolite 10500) incomplete