AJS Model 14 250 (1958-66)

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The AJS Model 14 250, also known as the 250CSR or Scrambler, was produced from 1958 to 1966. It has a single cylinder, 4-stroke, OHV engine with a capacity of 248.5cc and a compression ratio of 7.8:1 (11.5:1 for Scrambler). Cooling is air-cooled and the exhaust is 1-into-1. The bike uses an Amal monobloc carburetor, type 376/250, and is started by kick. It has a 4-speed transmission with chain final drive and a steel frame. The front suspension is a telescopic fork and the rear suspension is a swingarm with dual shocks. The bike has drum brakes (6 in) both front and rear and steel wheels with wire spokes. The wheelbase is 1345mm/53in, ground clearance is 140mm/5.5in, and seat height is 760mm/30in. Its dry weight is 148kg/325lbs and fuel capacity is 18L/4.8 US gal (12.5L/3.3 US gal for Scrambler). The bike was available in sport blue and black.

Technical specifications:

Make Model: AJS Model 14 250 / 250CSR / Scrambler

Year: 1958 – 66


Engine: Single cylinder, 4-stroke, OHV
Capacity: 248.5 cc / 15.2 cu in
Bore x Stroke: 69.85 / 64.84 mm
Cooling System: Air cooled
Compression Ratio: 7.8:1 Scrambler: 11.5:1
Oil Capacity: 1.4 L / 3.0 US pt
Exhaust: 1-into-1
Induction: Amal monobloc carburetor, type 376/250
Starting: Kick
Transmission: 4-Speed
Final Drive: Chain
Gear Ratio: 1st 20.12 / 2nd 12.75 / 3rd 8.96 / 4th 6.89:1 Scrambler: 1st 21.62 / 2nd 16.55 / 3rd 11.63 / 4th 8.95:1
Frame: Open tubular steel frame
Front Suspension: Telescopic fork
Rear Suspension: Swingarm with dual shocks

Front Brakes: Drum, 6 in
Rear Brakes: Drum, 6 in
Wheels: Steel with wire spokes
Wheelbase: 1345 mm / 53 in
Ground Clearance: 140 mm / 5.5 in
Seat Height: 760 mm / 30 in
Dry Weight: 148 kg / 325 lbs
Fuel Capacity: 18 L / 4.8 US gal Scrambler: 12.5 L / 3.3 US gal
Colours: Sport blue, black

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