8:1 Compression BSA B40 Piston +60 = 80.5mm Pin diameter: 19.00 mm Middle Gudgeon Pin to top of piston: 41.25 mm Length Gudgeon Pin: 66 mm Piston Clearence 0.12mm or 45thouwith Piston Rings, Circlips and Gudgeon Pin
Gear Layshaft 3rd Velocette Made in England by Velocette Ltd. MSS Viper Venom Clubman 350cc (MKI and MKII) Scrambler 350cc Clubman 500cc (MKI and MKII) Scrambler 500cc Thruxton Endurance