|Production||1958 - 1965|
|Bore / Stroke||54.0mm x 54.0mm|
|Top Speed||70 mph (112 km/h)|
|Horsepower||17.17 HP (12.8 KW) @ 6250RPM|
|Transmission||Gear box: 4-speed
Final Drive: chain
|Suspension||Front: trailing link oil-damped
|Brakes||Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
|Wheelbase||50.98 inches (1295 mm)|
|Seat Height||30.0 inches (762 mm)|
|Weight||330.69 pounds (150.0 Kg) (dry), 162.0 kg (wet)|
|Fuel Capacity||2.38 Gallon (9.00 Liters)|
|Fuel Consumption||2.94 liters/100 km (34.0 km/l or 80.01 mpg)|
The Ariel Leader was a twin, two-stroke Naked motorcycle produced by Ariel between 1958 and 1965. It could reach a top speed of 70 mph (112 km/h). Claimed horsepower was 17.17 HP (12.8 KW) @ 6250 RPM.
The Leader was probably Ariel's bravest foray into motorcycle manufacturing. It was an innovate, fully enclosed 250cc two-stroke released in 1959. Producing peak output of 18bhp, with the twin-cylinder engine based on that of the German Adler. The leader was intended to be a proper motorcycle with the convenience of a scooter. The Leader actually worked rather well, with a top speed of about 70mph (112kph) and excellent handling. But the public didn't take well to it. Ariel later striped the bodywork to produce the Arrow, with a tuned 20bhp engine in the Super Sports and Golden Arrow variants. Although the Arrow sold well it wasn't enough to stop Ariel from going under in 1967.
The bike has a 4-speed transmission. Power was moderated via the Dry.
It came with a 3.25-16 front tire and a 3.25-16 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 trailing link oil-damped while the rear was equipped with a swingarm. The Leader was fitted with a 2.38 Gallon (9.00 Liters) fuel tank. The bike weighed just 330.69 pounds (150.0 Kg). The wheelbase was 50.98 inches (1295 mm) long.
1958 - 1965 Ariel Leader
Manufactured from 1958 to 1965, the Leader has a 247 cc two stroke parallel twin engine with 17HP at 6750rpm and could reach a speed of 70mph.