R7

2021 Yamaha R7 Technical Analysis & Specification Breakdown

Built around Yamaha's sport motorcycle platform, the 2021 Yamaha R7 pairs a 689 cc (42 cu in) liquid-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 72.4 HP (52.9 kW) at 8,750 rpm while maximum torque reaches 67 Nm (49.4 lb-ft) at 6,500 rpm, transferring power to the rear wheel through chain final drive. With a specific output of 105.1 HP per liter and a 2,250 rpm working window between peak torque (6,500 rpm) and peak power (8,750 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 R7 measures 188 kg (414 lbs) wet (curb), translating to a power-to-weight ratio of 0.39 HP/kg (2.6 kg per horsepower). Rider ergonomics and chassis geometry center around a 860 mm (33.9 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,405 mm (55.3 in) wheelbase engineered for quick, flickable steering geometry. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Yamaha archive, this model family spans 4 indexed model years from 2021 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.