R 1100 GS

1999 BMW R 1100 GS Technical Analysis & Specification Breakdown

At the heart of the 1999 BMW R 1100 GS enduro - offroad motorcycle, BMW utilizes a 1085 cc (66.2 cu in) air-cooled two cylinder boxer, four-stroke layout. In factory specification, peak output is rated at 80 HP (58.4 kW) at 6,800 rpm while maximum torque reaches 97 Nm (71.5 lb-ft) at 5,300 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 73.7 HP per liter and a 1,500 rpm working window between peak torque (5,300 rpm) and peak power (6,800 rpm), 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 1100 GS measures 254 kg (560 lbs) wet (curb), translating to a power-to-weight ratio of 0.31 HP/kg (3.18 kg per horsepower). Rider ergonomics and chassis geometry center around a 840 mm (33.1 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,509 mm (59.4 in) wheelbase engineered for balanced agility and highway composure. The 25-liter (6.6 US gal) fuel tank paired with a rated consumption of 6.6 L/100 km provides an estimated theoretical range of roughly 379 km (235 miles) between fill-ups, while factory top speed is listed at 195 km/h (121 mph).

Within MotoLibrary's BMW archive, this model family spans 6 indexed model years from 1994 to 1999, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.