AJS Model 20 500: review, history, specs
|AJS Model 20|
|Also called||Model 20 500, Model 20 500|
|Production||1948 - 1959|
|Successor||AJS Model 31|
498cc air-cooled twin, four-stroke
|Bore / Stroke||66.0mm x 72.8mm|
|Top Speed||85 mph (137 km/h)|
|Horsepower||19.58 HP (14.6 KW) @ 6800RPM|
|Transmission||Gear box: 4-speed
Final Drive: chain
Rear: twin shock
|Brakes||Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
|Length||86.22 inches (2190 mm)|
|Width||27.95 inches (710 mm)|
|Height||41.34 inches (1050 mm)|
|Weight||392.42 pounds (178.0 Kg) (dry), 178.0 kg (wet)|
|Fuel Capacity||3.57 Gallon (13.50 Liters)|
The AJS Model 20 500 is a twin, four-stroke allround motorcycle produced between 1948 and 1959. It could reach a top speed of 85 mph (137 km/h). Claimed horsepower was 19.58 HP (14.6 KW) @ 6800 RPM. The Model 20 was finally discontinued when the 646 cc AJS Model 31 replaced it in the autumn of 1958.
The Model 20B was the model imported into the USA.
It came with a 3.25-19 front tire and a 3.25-19 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 telescopic while the rear was equipped with a twin shock. The Model 20 500 is fitted with a 3.57 Gallon (13.50 Liters) fuel tank. The bike weighs just 392.42 pounds (178.0 Kg).
1948 - 1961 AJS Model 20 500
The 1948 AJS Model 20 500 has, at its heart, an air-cooled, four-stroke, 498cc, parallel twin cylinder powerplant mated to a four-speed manual transmission. It comes standard with features such as laced wheels, a suspension package composed of a front telescopic fork and dual rear shocks, a solo, sprung seat, wide handlebars, an analogue instrument cluster, a dual exhaust system, full-fenders, a blacked-out frame, and a large, 17-liter (4.5-gallon) fuel tank.