Engineered by Aprilia for the minibike, cross motorcycle segment, the 2005 Aprilia Mini RX 50 Entry relies on a 49.8 cc (3 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 2 HP (1.5 kW), transferring power to the rear wheel through a 1-speed gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 39.0 x 41.7 mm (1.5 x 1.6 inches) with a 9.0:1 compression ratio.
On the scales, the Mini RX 50 Entry measures 35 kg (77 lbs) dry. Rider ergonomics and chassis geometry center around a 615 mm (24.2 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 925 mm (36.4 in) wheelbase engineered for quick, flickable steering geometry.
Standover Height
615 mm (24.2 in)
Engine
Displacement49.8 ccm (3.04 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power2.0 HP (1.5 kW))
Compression9.0:1
Bore x Stroke39.0 x 41.7 mm (1.5 x 1.6 inches)
Fuel SystemCarburettor. Dell’Orto PHBN 14 MS
LubricationSeparate mixing with variable displacement pump
CoolingAir
Transmission
Gearbox1-speed
Final DriveChain (final drive)
ClutchMultiple disk in oil bath
Chassis
Frame TypeSteel tube
Wheelbase925 mm (36.4 inches)
Ground Clearance230 mm (9.1 inches)
Wheels & Brakes
Front Tyre10-2.5
Rear Tyre10-2.5
Front BrakesExpanding brake (drum brake)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight35.0 kg (77.2 pounds)
Power/Weight0.0571 HP/kg
Seat Height615 mm (24.2 inches) If adjustable, lowest setting.
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.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
