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BMW R 80GS (1987) vs BMW F 900XR (2025)

Comparison technical specifications


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1987 BMW R 80GS
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2025 BMW F 900XR
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Make: BMW BMW
Model: R 80GS F 900XR
Years: 1987 2025
Engine: Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder
Capacity: 797.5 cc / 48.7 cu in. 895 cc / 54.6 cu-in
Bore x Stroke: 84.8 x 70.6 mm 86 x 77 mm
Cooling System: Air cooled Liquid cooled
Compression Ratio: 8.2:1 13.1:1
Induction: 2 x Bing constant depression carburetors Electronic intake pipe injection / digital engine management system: BMS-X with throttle-by-wire
Ignition: Battery ignition Electronic
Alternator: Bosch 12 V/280 W permanent magnetic alternator 416 W (nominal power)
Starting: Electric Electric
Max Power: 37 kW / 50 hp @ 6500 rpm 78 kW / 105 hp @ 8500 rpm
Max Torque: 61 Nm / 6.2 kgf-m / 44 ft lb @ 5000 rpm 93 Nm / 68.6 lb-ft @ 6750 rpm
Clutch: Dry single plate, with diaphragm spring Multiple-disc wet clutch (anti hopping), mechanically operated
Transmission: 5 Speed Constant mesh 6-speed gearbox integrated in crankcase
Final Drive: Shaft Endless O-ring chain with shock damping in rear wheel hub
Frame: Double loop tubular frame with bolt on rear section Bridge-type frame, steel shell construction, load bearing engine
Front Suspension: ∅40mm Marzocchi telescopic hydraulic forks. 43mm inverted fork with adjustable damping rebound and compression damping as well as adjustable spring preload.
Front Wheel Travel: 225 mm / 8.8 in 170 mm / 6.7 in
Rear Suspension: BMW Paralever swinging arm Aluminum double-sided swing arm, directly linked central spring strut, hydraulically adjustable spring preload, adjustable rebound damping (Optional equipment: Dynamic ESA)
Rear Wheel Travel: 180 mm / 7.0 in 173 mm / 6.8 in
Front Brakes: Single ∅285mm disc 2 x 320mm floating discs, 4-piston radial brake calipers, hydraulically operated
Rear Brakes: ∅200mm Drum Single 265mm discs, single-piston floating caliper, hydraulically operated
Front Tyre: 90/90 x 21S 120/70 ZR 17
Rear Tyre: 13/80 x 17S 180/55 ZR 17
Dimensions: Length 2290 mm / 90.1 in Width 1000 mm / 39.3 in Height 1165 mm / 45.8 in Length 2159 mm / 85 in Width 919 mm / 36.2 in
Wheelbase: 1514 mm / 59.6 in 1534 mm / 60.4 in
Seat Height: 850 mm / 33.5 in 846 mm / 33.3
Wet Weight: 210 kg / 462 lbs 216 kg / 476 lbs
Fuel Capacity: 24 L / 6.3 US gal 15.5 Litres / 4.1 US gal