Aprilia SR50

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The Aprilia SR50R was a single cylinder, two-stroke scooter motorcycle produced between 1995 and 2018. It could reach a top speed of 28 mph (45 km/h). Max torque was 2.8 ft/lbs (3.8 Nm) @ 8000 RPM. Claimed horsepower was 4.43 HP (3.3 KW) @ 9500 RPM.

Engine

The engine was a liquid cooled single cylinder, two-stroke. A 40.0mm bore x 39.3mm stroke result in a displacement of just 49.0 cubic centimeters. The engine featured a 12.1:1 compression ratio. Fuel was supplied via a single overhead cams (sohc).

Drive

The bike has a automatic transmission. The final drive was via belt. Power was moderated via the automatic centrifugal dry clutch.

Chassis

It came with a 130/60-13 front tire and a 130/60-13 rear tire. Stopping was achieved via single disc. 2 opposing pistons in the front and a single disc. 2 opposing pistons in the rear. The front suspension was a telescopic hydraulic fork while the rear was equiped with a engine unit acting as swingarm. monoshock.. The SR50R was fitted with a 1.85 Gallon (7.00 Liters) fuel tank. The bike weighed just 233.69 pounds (106.0 Kg). The wheelbase was 50.79 inches (1290 mm) long.

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