R 100 RS

1987 BMW R 100 RS Technical Analysis & Specification Breakdown

Engineered by BMW for the touring motorcycle segment, the 1987 BMW R 100 RS utilizes a 979 cc (59.7 cu in) air-cooled two cylinder boxer, four-stroke layout. 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 RS measures 243 kg (536 lbs) wet (curb), translating to a power-to-weight ratio of 0.25 HP/kg (4.05 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 186 km/h (116 mph).

Within MotoLibrary's BMW archive, this model family spans 12 indexed model years from 1976 to 1989, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.