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MotoLibrary Score
45/100Balanced
Power
27 HP
Top Speed
147 km/h
Engine
649 ccm
Technical Overview
1985 BMW R65 (reduced effect) Technical Analysis & Specification Breakdown
At the heart of the 1985 BMW R65 (reduced effect) naked motorcycle, BMW features a 649 cc (39.6 cu in) air-cooled two cylinder boxer, four-stroke configuration. In factory specification, peak output is rated at 27 HP (19.7 kW) at 5,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 41.6 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 R65 (reduced effect) measures 205 kg (452 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.59 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 147 km/h (91 mph).
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
