1997 BMW R850C
Engine
Engine type Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
Bore x Stroke 87.8 x 70.5 mm (3.45 x 2.77 inches)
Displacement 848 cc
Valves 4 valves per cylinder; hc, using chain drive, cup tappets, push rod and rocker arm
Compression ratio 10.3:1
Max Power 50 hp (37 KW) @ 5250 rpm
Max Torque 71 Nm / 52 ft lb @ 4750 rpm
Fuel system Electronic injection, Bosch Motronic MA 2.4
Transmission 5-speed; Dog type gearbox (ratchet foot lever)
Final drive Cardan
Clutch Dry single plate, with lever action diaphragm spring
Ignition type Electronic ignition, Bosch Motronic MA 2.4
Starting system Electric starter
Lubrication Wet sump
Exhaust
Spark plug Bosch FR6 DDC
Generator
Gear ratios 2.05 / 1.60 / 1.27 / 1.04 / 0.80 : 1
Dimensions
Frame type 3 part tubular space frame, engine serving as load bearing component
Castor
Overall length 2340 mm (92.12 inches)
Overall width 1050 mm (41.33 inches)
Overall height 1130 mm (44.48 inches)
Wheelbase 1650 mm (64.96 inches)
Seat height 740 mm (29.10 inches)
Ground clearance 172 mm (6.77 inches)
Dry weight 193 kg
Fuel capacity 17 litres
Colors
Suspension (front) BMW Telelever fork with longitudinal control arm and central strut
Suspension (rear) BMW monolever swinging arm
Tyre (front) 100/90 R18 56 H; BMW cross spoke wheels 2.50 x 18 MT H2
Tyre (rear) 170/80 R15 83 H; BMW cross spoke wheels 4.00 x 15 MT H2
Brake (front) Dual disc brake 305 mm / 12.00 in diameter
Brake (rear) Single disc brake 285 mm / 11.22 in diameter
Image: http://www.motorradonline.de/gebrauchte-motorraeder/gebrauchtberatung-bmw-850er/333044