BSA B33 Piston Ring Set / Piston Rings +040
+040=86mm
500cc
Oil Ring: 4mm thick, 3.5mm deep
Upper + Middle Ring: 2.35mm thick
Made in Taiwan - have proofed to be succesfull
Belt drive kit, Pre unit, Rigid Frame Alloy, Triumph for Racing f. wet and dry use 6 Clutch Plates included Clutch Basket and Plates are AlloyWidth of Belt 25 mmstart with bonded plate at the bottom