Ariel Square Four 1000
The Ariel 4G MK II was a square four cylinder allround motorcycle produced between 1936 and 1967. It could reach a top speed of 99 mph (160 km/h). Claimed horsepower was 43.99 HP (32.8 KW) @ 5500 RPM.
Engine
The engine was a air cooled square four cylinder. A 65.0mm bore x 78.0mm stroke result in a displacement of just 1000.0 cubic centimeters. The engine featured a 6.0:1 compression ratio. Fuel was supplied via a overhead valves (ohv).
Drive
The bike has a 4-speed transmission. The final drive was via chain. Power was moderated via the dry, 3-plate.
Chassis
It came with a 3.25-19 front tire and a 4-18 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 equiped with a plungertype with cil-springs. The 4G MK II was fitted with a 6.08 Gallon (23.00 Liters) fuel tank. The bike weighed just 455.92 pounds (206.8 Kg). The wheelbase was 55.98 inches (1422 mm) long.