FZR 750 R

1991 Yamaha FZR 750 R Technical Analysis & Specification Breakdown

Positioned in Yamaha's prototype - concept model motorcycle lineup, the 1991 Yamaha FZR 750 R pairs a 749 cc (45.7 cu in) liquid-cooled in-line four, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 121 HP (88.3 kW) at 12,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 161.5 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the FZR 750 R measures 215 kg (474 lbs) wet (curb), translating to a power-to-weight ratio of 0.56 HP/kg (1.78 kg per horsepower). The 20-liter (5.3 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 1989 to 1992, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.