At the heart of the 2002 Aprilia RX 50 enduro - offroad motorcycle, Aprilia utilizes a 49.7 cc (3 cu in) liquid-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 8 HP (5.8 kW) at 10,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 40.3 x 39.0 mm (1.6 x 1.5 inches) with a 12.0:1 compression ratio.
On the scales, the RX 50 measures 132 kg (291 lbs) wet (curb), translating to a power-to-weight ratio of 0.06 HP/kg (16.5 kg per horsepower). Rider ergonomics and chassis geometry center around a 860 mm (33.9 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,360 mm (53.5 in) wheelbase engineered for quick, flickable steering geometry. The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 70 km/h (43 mph).
Within MotoLibrary's Aprilia archive, this model family spans 15 indexed model years from 2002 to 2022, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Power-to-Weight
0.06 HP/kg (16.5 kg/HP)
Standover Height
860 mm (33.9 in)
Engine
Displacement49.7 ccm (3.03 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power8.0 HP (5.8 kW)) @ 10000 RPM
Compression12.0:1
Bore x Stroke40.3 x 39.0 mm (1.6 x 1.5 inches)
Valves/Cylinder0
Fuel SystemCarburettor
Fuel ControlReed valve
IgnitionElectronic with CDI capacity discharge
LubricationSeparate lubrication with mechanical oil pump
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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
