BWs 125

2012 Yamaha BWs 125 Technical Analysis & Specification Breakdown

At the heart of the 2012 Yamaha BWs 125 scooter motorcycle, Yamaha relies on a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 9 HP (6.6 kW) at 7,500 rpm while maximum torque reaches 9.6 Nm (7.1 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 72 HP per liter and a 1,500 rpm working window between peak torque (6,000 rpm) and peak power (7,500 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 BWs 125 measures 121 kg (267 lbs) wet (curb), translating to a power-to-weight ratio of 0.07 HP/kg (13.44 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,290 mm (50.8 in) wheelbase engineered for quick, flickable steering geometry. The 6-liter (1.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 10 indexed model years from 2010 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.