R 100 RT

1991 BMW R 100 RT Technical Analysis & Specification Breakdown

At the heart of the 1991 BMW R 100 RT sport touring motorcycle, BMW relies on a 979 cc (59.7 cu in) air-cooled two cylinder boxer, four-stroke powerplant. In factory specification, peak output is rated at 60 HP (43.8 kW) at 6,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 61.3 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the R 100 RT measures 238 kg (525 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (3.97 kg per horsepower). The 22-liter (5.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 168 km/h (104 mph).

Within MotoLibrary's BMW archive, this model family spans 15 indexed model years from 1978 to 1996, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.