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MotoLibrary Score
35/100Commuter
Power/Weight
0.11 hp/kg
Engine
107 ccm
Technical Overview
2006 Lem Four X Technical Analysis & Specification Breakdown
Built around Lem's minibike, cross motorcycle platform, the 2006 Lem Four X features a 107 cc (6.5 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 7 HP (5.1 kW), transferring power to the rear wheel through a 4-speed gearbox. With a specific output of 65.4 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Four X measures 61 kg (134 lbs) dry, translating to a power-to-weight ratio of 0.11 HP/kg (8.71 kg per horsepower). Rider ergonomics and chassis geometry center around a 670 mm (26.4 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,010 mm (39.8 in) wheelbase engineered for quick, flickable steering geometry.
Specific Output
65.4 HP/L
Power-to-Weight
0.11 HP/kg (8.71 kg/HP)
Standover Height
670 mm (26.4 in)
Engine
Displacement107.0 ccm (6.53 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power7.0 HP (5.1 kW))
Bore x Stroke52.4 x 49.5 mm (2.1 x 1.9 inches)
Valves/Cylinder2
IgnitionCDI
CoolingAir
Transmission
Gearbox4-speed
Chassis
Wheelbase1010 mm (39.8 inches)
Ground Clearance215 mm (8.5 inches)
Wheels & Brakes
Front Tyre2.50-12
Rear Tyre2.75-10
Front BrakesSingle disc
Front Brake Ø200 mm (7.9 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø80 mm (3.1 inches)
Dimensions & Weight
Dry Weight61.0 kg (134.5 pounds)
Power/Weight0.1148 HP/kg
Seat Height670 mm (26.4 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.
