1945 AJS Model 18 500 (S, CS, Statesman) technical specifications

Technical specifications

Model: Model 18 500 (S, CS, Statesman)
Years: 1945-66
Engine: Single cylinder, 2 valve per cylinder, pushrod OHV
Capacity: 498 c / 30.4 cu in
Bore x Stroke: 82.5 x 93 mm
Compression ratio: 6.90:1 (with compression plate) 7.24:1 (with no compression plate)
Cooling system: Air cooled
Lubrication: Dry sump
Oil Capacity: 2.3 L / 4.8 US pt
Induction: Carburetor, type 89B/IAK
Ignition: Lucas magneto
Starting: Kick
Max Power: 20.9 kW / 28 hp @ 5600 rpm
Transmission: 4 Speed, Burman gearbox
Drive: Chain
Front Suspension: Hydraulic telescopic fork
Rear Suspension: Swinging arm, dual shocks
Front Brakes: Drum
Rear Brakes: Drum
Wheels: Steel, wire spokes
Front Tyre: 3.25 -19
Rear Tyre: 34.25 -19
Wheelbase: 1400 mm / 55 in
Seat Height: 760 mm / 30 in
Dry-Weight: Standard rigid frame: 15660 kg / 353 lbs Spring frame: 175 kg / 386 lbs Competition rigid frame: 137 kg / 303 lbs
Fuel Capacity: Rigid, Spring frame: 13 L / 4.23.4 US gal Competition: 10.2 L / 2.7 US gal

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