NORTON MODEL 77

ENGINE: OHV air-cooled twin BORE AND STROKE: 68x82mm CAPACITY: 597cc COMPRESSION RATIO: 7.4:1 CARB: Amal Monobloc POWER: 31BHP IGNITION/ELECTRICAL: 6v Lucas Magneto/ Lucas Dynamo TRANSMISSION: Chain primary drive, four-speed gearbox, multiplate wet clutch FRAME: Tubular steel with pressed cradle SUSPENSION: Roadholder telescopic forks with twin shock rear WEIGHT: 395lb/179kg WHEELBASE: 56in/1410mm SEAT HEIGHT: 31in/787mm BRAKES: 7in SLS drum front and rear WHEELS/TYRES: 3.25x19in front and 3.50x189in rear