Ariel Square Four 600: history, specs, pictures

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Ariel Square Four 600
Also called 4F Square Four 600
Production 1932 - 1936
square four cylinder
Bore / Stroke 56.0mm x 61.0mm
Top Speed 75 mph (120 km/h)
Horsepower 23.47 HP (17.5 KW) @ 6000RPM
Fuel System carburetor. amal
Transmission Gear box: 4-speed
Final Drive: chain
Suspension Front: spring girders
Rear: rigid
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 3.25-19
Rear Tire 3.25-19
Wheelbase 54.53 inches (1385 mm)
Weight 370.38 pounds (168.0 Kg) (dry),
Fuel Capacity 3.5 Gallon (13.25 Liters)
Manuals Service Manual

The Ariel 4F Square Four 600 was a square four cylinder standard produced by Ariel between 1932 and 1936. It could reach a top speed of 75 mph (120 km/h). Claimed horsepower was 23.47 HP (17.5 KW) @ 6000 RPM.


The engine was a air cooled square four cylinder. A 56.0mm bore x 61.0mm stroke result in a displacement of just 601.0 cubic centimeters. Fuel was supplied via a overhead cams (ohc).


The bike has a 4-speed transmission.


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 spring girders while the rear was equipped with a rigid. The 4F Square Four 600 was fitted with a 3.5 Gallon (13.25 Liters) fuel tank. The bike weighed just 370.38 pounds (168.0 Kg). The wheelbase was 54.53 inches (1385 mm) long.