Norton commando 850 John Player Special (1974)
The Norton Commando 850 John Player Special is a motorcycle that was manufactured in 1974. It has a four-stroke, parallel-twin cylinder engine and is air-cooled, with a compression ratio of 8.5:1. The bike has a maximum power output of 60 hp at 6200 rpm and is equipped with a four-speed transmission and a chain final drive. The frame is a twin downtube cradle with Isolastic engine mounts and the front suspension is telescopic forks with dual shocks in the rear. The front brake is a single disc while the rear is a drum brake. The Norton Commando 850 JPS has a wheelbase of 1440 mm and a dry-weight of 188 kg. The fuel capacity is 12 litres or 3.2 US gallons.
Technical specifications:
Make Model: Norton commando 850 John Player Special
Year: 1974
Engine: Four stroke, parallel twin cylinder, push rod 2 valves per cylinder.
Capacity: 829 cc / 50.6 cu in
Bore x Stroke: 77 x 89 mm
Cooling System: Air cooled
Compression Ratio: 8.5:1
Induction: 2 x ~A32 mm Amal carburetors
Starting: Kick
Max Power: 60 hp / 44.7 kW @ 6200 rpm
Transmission: 4 Speed
Final Drive: Chain
Frame: Twin downtube cradle with Isolastic engine mounts
Front Suspension: Telescopic forks
Rear Suspension: Dual shocks
Front Brakes: Single disc
Rear Brakes: Drum
Front Tyre: 3.50 H18
Rear Tyre: 4.10 V18
Wheelbase: 1440 mm / 56.7 in
Dry-Weight: 188 kg / 414 lbs
Fuel Capacity: 12 Litres / 3.2 US gal
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