Four X-R

2007 Lem Four X-R Technical Analysis & Specification Breakdown

Built around Lem's enduro - offroad motorcycle platform, the 2007 Lem Four X-R pairs a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 8.5 HP (6.2 kW), transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 68 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-R measures 56.5 kg (125 lbs) dry, translating to a power-to-weight ratio of 0.15 HP/kg (6.65 kg per horsepower). Rider ergonomics and chassis geometry center around a 700 mm (27.6 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,060 mm (41.7 in) wheelbase engineered for quick, flickable steering geometry. The 2-liter (0.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Lem archive, this model family spans 2 indexed model years from 2006 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.