BWs

2011 Yamaha BWs Technical Analysis & Specification Breakdown

At the heart of the 2011 Yamaha BWs scooter motorcycle, Yamaha pairs a 49.2 cc (3 cu in) air-cooled single cylinder, two-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 3.2 HP (2.4 kW) at 6,500 rpm while maximum torque reaches 3.6 Nm (2.7 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 40.0 x 39.2 mm (1.6 x 1.5 inches) with a 7.2:1 compression ratio.

On the scales, the BWs measures 82 kg (181 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 768 mm (30.2 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,172 mm (46.1 in) wheelbase engineered for quick, flickable steering geometry. The 5.3-liter (1.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 7 indexed model years from 2006 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.