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MotoLibrary Score
41/100Commuter
Power/Weight
0.31 hp/kg
Engine
50 ccm
Technical Overview
2011 Lem RX2 Racing Technical Analysis & Specification Breakdown
Built around Lem's minibike, cross motorcycle platform, the 2011 Lem RX2 Racing pairs a 49.8 cc (3 cu in) liquid-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 12.6 HP (9.2 kW) at 13,500 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 39.1 x 41.7 mm (1.5 x 1.6 inches).
On the scales, the RX2 Racing measures 41 kg (90 lbs) dry, translating to a power-to-weight ratio of 0.31 HP/kg (3.25 kg per horsepower). Rider ergonomics and chassis geometry center around a 605 mm (23.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 910 mm (35.8 in) wheelbase engineered for quick, flickable steering geometry. The 2.01-liter (0.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Power-to-Weight
0.31 HP/kg (3.25 kg/HP)
Standover Height
605 mm (23.8 in)
Engine
Displacement49.8 ccm (3.04 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsAluminium cylinder
Power12.6 HP (9.2 kW)) @ 13500 RPM
Bore x Stroke39.1 x 41.7 mm (1.5 x 1.6 inches)
Fuel SystemCarburettor. Dell´Orto PHBN 14
IgnitionCDI
Lubrication3% mixture
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveChain (final drive)
DrivelineCVT
Chassis
Frame TypeSteel tube, aluminium swing arm
Front SuspensionHydraulic fork
Front Travel140 mm (5.5 inches)
Rear SuspensionHydraulic monoshock
Rear Travel38 mm (1.5 inches)
Wheelbase910 mm (35.8 inches)
Ground Clearance210 mm (8.3 inches)
Wheels & Brakes
Front Tyre2.50-10
Rear Tyre2.75-10
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc
WheelsSpoke wheels
Dimensions & Weight
Dry Weight41.0 kg (90.4 pounds)
Power/Weight0.3073 HP/kg
Seat Height605 mm (23.8 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.
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.
