RK III 125

2013 Keeway RK III 125 Technical Analysis & Specification Breakdown

Built around Keeway's sport motorcycle platform, the 2013 Keeway RK III 125 utilizes a 124.1 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 10.1 HP (7.3 kW) at 8,250 rpm while maximum torque reaches 9.3 Nm (6.9 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 81.4 HP per liter and a 750 rpm working window between peak torque (7,500 rpm) and peak power (8,250 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the RK III 125 measures 128 kg (282 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (12.67 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,320 mm (52 in) wheelbase engineered for quick, flickable steering geometry. The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Keeway archive, this model family spans 2 indexed model years from 2013 to 2014, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.