DR 650 RS (reduced effect)

1990 Suzuki DR 650 RS (reduced effect) Technical Analysis & Specification Breakdown

At the heart of the 1990 Suzuki DR 650 RS (reduced effect) enduro - offroad motorcycle, Suzuki relies on a 640 cc (39.1 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 27 HP (19.7 kW) at 5,800 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 42.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the DR 650 RS (reduced effect) measures 184 kg (406 lbs) wet (curb), translating to a power-to-weight ratio of 0.15 HP/kg (6.81 kg per horsepower). The 20-liter (5.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 130 km/h (81 mph).

Within MotoLibrary's Suzuki 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.