YBR250

2011 Yamaha YBR250 Technical Analysis & Specification Breakdown

Built around Yamaha's sport motorcycle platform, the 2011 Yamaha YBR250 utilizes a 249 cc (15.2 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 21.1 HP (15.4 kW) at 8,000 rpm while maximum torque reaches 20.7 Nm (15.3 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 84.7 HP per liter and a 1,500 rpm working window between peak torque (6,500 rpm) and peak power (8,000 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 YBR250 measures 138 kg (304 lbs) wet (curb), translating to a power-to-weight ratio of 0.15 HP/kg (6.54 kg per horsepower). Rider ergonomics and chassis geometry center around a 805 mm (31.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,360 mm (53.5 in) wheelbase engineered for quick, flickable steering geometry. The 19.2-liter (5.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2008 to 2011, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.