Moto-Data

1952 AJS 7R technical specifications

AJS 7R technical specifications

Technical specifications

Model: 7R
Years: 1952
Engine: Single cylinder, 4-stroke, OHC Triple-Camshaft
Capacity: 349.2 cc / 21.3 cub in
Bore x Stroke: 75.5 x 78 mm
Cooling System: Air/oil cooled
Compression Ratio: 12.2:1
Oil Capacity: 4.0 L / 8.4 US pints
Exhaust: 1-into-1
Induction: Carburetor, 1 3/16 Amal
Ignition: Lucas magneto
Spark Plug: B6ES
Starting: Kick
Max Power: 29.8 kW / 40 hp @ 8000 rpm
Clutch: Dry, multiplate Ferodo
Transmission: 4-Speed
Final Drive: Chain
Final Drive Ratio: 4.87:1
Frame: Tubular double cradle
Front Suspension: Telescopic fork
Rear Suspension: Dual shocks
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Steel, wire spokes
Front Rim: 2.75 x 19
Rear Rim: 3.50 x 19
Dry Weight: 129 kg / 285 lbs
Fuel Capacity: 22.7 L / 6.0 US gal
Top Speed: 193 km/h / 120 mph
Review: Cycle World

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