F 1

1991 Norton F 1 Technical Analysis & Specification Breakdown

At the heart of the 1991 Norton F 1 motorcycle, Norton pairs a 588 cc (35.9 cu in) liquid-cooled dual disk wankel architecture with road-focused gearing. In factory specification, peak output is rated at 95 HP (69.3 kW) at 9,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 161.6 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the F 1 measures 229 kg (505 lbs) wet (curb), translating to a power-to-weight ratio of 0.41 HP/kg (2.41 kg per horsepower). The 21-liter (5.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 231 km/h (144 mph).

Within MotoLibrary's Norton archive, this model family spans 2 indexed model years from 1990 to 1991, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.