Vixion R

2021 Yamaha Vixion R Technical Analysis & Specification Breakdown

Built around Yamaha's naked motorcycle platform, the 2021 Yamaha Vixion R features a 155.1 cc (9.5 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 19 HP (13.9 kW) at 10,000 rpm while maximum torque reaches 14.7 Nm (10.8 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 122.5 HP per liter and a 1,500 rpm working window between peak torque (8,500 rpm) and peak power (10,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the Vixion R measures 131 kg (289 lbs) wet (curb), translating to a power-to-weight ratio of 0.15 HP/kg (6.89 kg per horsepower). Rider ergonomics and chassis geometry center around a 795 mm (31.3 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 11-liter (2.9 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 2018 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.