2021 Bmw R 1250 GS Technical Analysis & Specification Breakdown
Positioned in Bmw's enduro - offroad motorcycle lineup, the 2021 Bmw R 1250 GS pairs a 1254 cc (76.5 cu in) liquid-cooled two cylinder boxer, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 136 HP (99.3 kW) at 7,750 rpm while maximum torque reaches 143 Nm (105.5 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and shaft drive (cardan) final drive. With a specific output of 108.5 HP per liter and a 1,250 rpm working window between peak torque (6,500 rpm) and peak power (7,750 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the R 1250 GS measures 249 kg (549 lbs) wet (curb), translating to a power-to-weight ratio of 0.55 HP/kg (1.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 850 mm (33.5 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,525 mm (60 in) wheelbase engineered for planted straight-line stability. The 20-liter (5.3 US gal) fuel tank paired with a rated consumption of 4.75 L/100 km provides an estimated theoretical range of roughly 421 km (262 miles) between fill-ups, while factory top speed is listed at 200 km/h (124 mph).
Within MotoLibrary's Bmw archive, this model family spans 5 indexed model years from 2019 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
108.5 HP/L
Power-to-Weight
0.55 HP/kg (1.83 kg/HP)
Power Band Window
6,500–7,750 rpm
Theoretical Range
~421 km (262 mi)
Engine
Displacement1254.0 ccm (76.52 cubic inches)
Engine TypeTwo cylinder boxer, four-stroke
Engine DetailsBalancer shaft
Power136.0 HP (99.3 kW)) @ 7750 RPM
Torque143.0 Nm (14.6 kgf-m or 105.5 ft.lbs) @ 6500 RPM
Fuel Consumption4.75 litres/100 km (21.1 km/l or 49.52 mpg)
Greenhouse Gases110.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsRegulated three-way catalytic converter, compliant with EU5 emission standard
Chassis
Frame TypeTwo-section frame, front- and bolted on rear frame, load-bearing engine
Rake25.5°
Trail100 mm (3.9 inches)
Front SuspensionBMW Motorrad Telelever; stanchion diameter 37 mm, central spring strut
Front Travel190 mm (7.5 inches)
Rear SuspensionCast aluminium single-sided swing arm with BMW Motorrad Paralever; WAD strut (travel-related damping), spring pre-load hydraulically adjustable (continuously variable) at handwheel, rebound damping adjustable at handwheel
Rear Travel200 mm (7.9 inches)
Wheelbase1525 mm (60.0 inches)
Ground Clearance185 mm (7.3 inches)
Wheels & Brakes
Front Tyre120/70-R19
Rear Tyre170/60-R17
Front BrakesDouble disc. ABS. Floating discs. Four-piston calipers.
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
