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BMW R 850GS

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Make Model

BMW R 850GS

Year

1999 - 01

Engine

Four stroke, two-cylinder, horizontally-opposed Boxer engine, 4 valves per cylinder

Capacity

848 cc / 51.7 cu in.
Bore x Stroke 87.5 x 70.5 mm
Cooling System Air/Oil-cooled
Compression Ratio 10.3:1
Lubrication Wet sump

Induction

Electronic injection, Bosch Motronic

Ignition 

Electronic Bosch Motronic MA 2.4
Spark Plug Bosch FR6 DDC
Alternator 12 V 700 W
Battery 12V / 19 Ah
Starting Electric

Max Power

53.2 kW / 73 hp @ 6750 rpm

Max Torque

77 Nm / 7.85 kgf-m / 56 ft/lb @ 5600 rpm
Clutch Dry single plate, with lever action diaphragm spring

Transmission 

5 Speed 
Final Drive Shaft
Gear Ratio 1st 4.16 / 2nd 2.91 / 3rd  2.13 / 4th 1.74 / 5th 1.45:1
Rear Wheel Ratio 1:3.36
Frame Three section composite frame consisting of front & rear section, load bearing engine

Front Suspension

BMW Telelever fork with longitudinal control arm and central strut
Front Wheel Travel 190 mm / 7.4 in

Rear Suspension

BMW Paralever swinging arm
Rear Wheel Travel 200 mm / 7.9 in

Front Brakes

2 x ∅305mm discs, 4 piston calipers

Rear Brakes

Single ∅276mm disc, 2 piston caliper
Front Wheel BMW cross spoke wheels 2.50 x 19 MT H2
Rear Wheel BMW cross spoke wheels 4.00 x 17 MT H2

Front Tyre

110 / 80 - R19 59 H

Rear Tyre

150 / 70 - R17 69 H

Dimensions Length 2196 mm / 86.4 in
Width 920 mm / 36.2 in
Height 1360 mm / 53.7 in
Wheelbase 1509 mm / 59.4 in
Seat Height 840 mm - 860 mm / 33.0 in - 33.8 in

Dry Weight

225 kg / 496 lbs

Wet-weight 234.4 kg / 516.7 lbs
Ground Clearance 200 mm / 7.9 in

Fuel Capacity 

24 L / 6.3 US gal

Consumption Average

5.5 L/100 km / 18.2 km/l / 42.8 US mpg

Standing ¼ Mile  

13.0 sec

Top Speed

185 km/h / 115 mph

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The R850GS is the smaller-capacity companion to the R1100GS. While the Rl 100GS was superseded by the updated R1150GS in 1999, the R850GS remained in production as a cheaper, lower-capacity alternative. Cosmetically and mechanically, it is almost identical to the older Rl 100GS, the only external signs of its smaller capacity being the tank badges.

The quirky styling, with a large 'snout' mudguard integrated into the top fairing, is instantly recognizable, and the screen and large tank provide good weather-protection. The flat-twin engine shelters the rider's feet and legs. Since the R850GS has all the mass of the larger 1100 model, but with less power, it offers slower progress. An ABS version is also available.