At the heart of the 1931 Ariel 4F Square Four 500 allround motorcycle, Ariel features a 498 cc (30.4 cu in) air-cooled square four cylinder configuration. Internal engine geometry specifies a bore and stroke of 51.0 x 61.0 mm (2.0 x 2.4 inches) with a 6.9:1 compression ratio.
On the scales, the 4F Square Four 500 measures 193 kg (425 lbs) dry. Rider ergonomics and chassis geometry center around a 1,385 mm (54.5 in) wheelbase engineered for quick, flickable steering geometry. The 13.25-liter (3.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 121 km/h (75 mph).
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
