AJS Model 30

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AJS MODEL 30.jpg

The AJS Model 30 600 is a v2, four-stroke allround motorcycle produced between 1956 and 1957. It could reach a top speed of 94 mph (152 km/h). Claimed horsepower was 32.32 HP (24.1 KW) @ 6800 RPM.

Development[edit]

Like most AJS roadsters, the 600cc Model 30 of the late 1950s suffered from a case of dual personality. Almost exactly the same bike, differing only in paint color, badges and exhaust system, was also sold as the Matchless G11 — a result of the Wolverhampton-based AJS firm having been taken over by Matchless of London in 1931. The combined firm in turn became part of Associated Motor Cycles (AMC) in 1938, but the AJS and Matchless names were retained and used in an attempt to attract the continued support of each of the brand's enthusiasts.

AJS had originally been founded by Albert John Stevens in Wolverhampton around the turn of the century, and won the Junior TT in 1914. But AJS's greatest racing feats came later, notably when Les Graham won the first ever 500cc world championship on the Porcupine twin in 1949.

The most popular AJS racebike was the single-cylinder 350cc 7R, known as the "Boy Racer". Introduced in 1948, the 7R was hugely successful and was later enlarged to 500cc to make the Matchless G50. Most of AJS's roadsters were less spectacular singles and parallel twins such as the Model 30, whose 600cc engine had almost square dimensions, and gave a smoother ride than most other models.

Peak output was only 33bhp but the twin was capable of cruising fairly smoothly at 70mph (112kph). Handling was predictable and made for a relaxed, comfortable bike over distances. The Model 30 was also well-made, reliable and economical. Unfortunately such attributes were not enough to keep AJS in business. Poor sales led to parent company AMC becoming part of Norton Villiers in 1967. Some AJS bikes were then built incorporating Norton parts, but they were not successful and the factory ceased production shortly afterwards.

Engine[edit]

The engine was a air cooled v2, four-stroke. A 72.0mm bore x 72.8mm stroke result in a displacement of just 593.0 cubic centimeters. Fuel was supplied via a overhead valves (OHV).

Drive[edit]

The bike has a 4-speed transmission. The final drive was via chain. Power was moderated via the dry multi-plate.

Chassis[edit]

It came with a 3.50-19 front tire and a 3.50-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a hydraulic telescopic while the rear was equipped with a twin shock. The Model 30 600 is fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The bike weighs just 392.42 pounds (178.0 Kg).

AJS Model 30
Manufacturer
AJS
Also called Model 30600, Model 30 600
Production 1956 - 1957
Class Classic
Engine
air-cooled, four-stroke, parallel twin, OHV, 2 valves
Bore / Stroke 71.1mm x 71.1mm
Compression ratio 7:1
Top Speed 94 mph (152 km/h)
Horsepower 32.99 HP (24.6 KW) @ 6800RPM
Transmission Gear box: 4-speed, manual

Final Drive: chain

Clutch: wet multi-disc, manual
Suspension Front: telescopic fork
Rear: dual shocks
Brakes Front: drum
Rear: drum
Front Tire 3.25 -19
Rear Tire 3.50 -19
Length 84.65 inches (2150 mm)
Width 27.56 inches (700 mm)
Height 40.94 inches (1040 mm)
Weight 392.42 pounds (178.0 Kg) (dry), 178.0 kg (wet)
Fuel Capacity 4.23 Gallon (16.00 Liters)
Manuals Service Manual


The AJS Model 30 600 was a air-cooled, four-stroke, parallel twin, OHV, 2 valves Classic motorcycle produced by AJS between 1956 and 1957. It could reach a top speed of 94 mph (152 km/h). Claimed horsepower was 32.99 HP (24.6 KW) @ 6800 RPM.

Engine[edit]

The engine was a air cooled air-cooled, four-stroke, parallel twin, OHV, 2 valves. A 71.1mm bore x 71.1mm stroke result in a displacement of just 593.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Drive[edit]

The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.

Chassis[edit]

It came with a 3.25 -19 front tire and a 3.50 -19 rear tire. Stopping was achieved via drum in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equiped with a dual shocks. The Model 30 600 was fitted with a 4.23 Gallon (16.00 Liters) fuel tank. The bike weighed just 392.42 pounds (178.0 Kg).

1957 AJS Model 30 600[edit]

1957 AJS Model 30 600

The 1956 AJS Model 30 600 is a powerful classic two-wheeler, that has been created for the adrenaline-junkies among AJS fans. It sports an air-cooled, four-stroke, 593cc, parallel twin cylinder engine mated to a four-speed manual transmission, and can produce a claimed 33 horsepower at 6800 rpm.

It comes standard with features such as a laced wheels, a dual seat, a dual, chromed, exhaust system, a large headlight, a center stand, full fenders, a suspension package composed of a front telescopic fork and dual shocks in the rear, a drum braking system, a large headlight and a blacked-out frame.


In Media[edit]