Model range 2004

R 850 R

Specifications R 850 R R 850 R
25kW
R 850 R Comfort
Engine
Capacity cc 848
Bore/stroke mm 87.5/70.5
Max output kW/bhp 52/70 25/34 53/70
@ rpm 7000 5000 7000
Max torque Nm 77 1160 78
@ rpm 5600 3000 5600
Engine configuration flat-twin
No of cylinders 2
Compression ratio/fuel grade 10.3/premium
Valve control HC
Valves per cylinder 4
Intake/outlet dia mm 32/27
Fuel supply Motronic MA 2.4
Electrical system
Alternator W 700
Battery V/Ah 12/19 maintenance-free
Headlight W H4 55/60
Starter kW 1.1
Power transmission
Clutch single-plate dry clutch, dia 180 mm
Transmission 6-speed gearbox with dog-type shift
Primary ratio 1.889
Transmission ratios I 2.038
II 1.600
III 1.267
IV 1.034
V 0.903
VI 0.806
Final drive driveshaft
Transmission ratio 3.09
Suspension and running gear
Frame composite frame, front section in aluminium load-bearing engine
Wheel suspension, front BMW Telelever
Wheel suspension, rear BMW Paralever
Spring travel front/rear mm 120/135
Castor in normal trim mm 127
Wheelbase in normal trim mm 1487
Steering head angle in normal trim ° 61.9
Brakes front double disc brake, dia 320 mm
rear single disc brake, dia 276 mm
Wheels light alloy
front 3.50 x 17 3.50 x 18
rear 5.00 x 17 5.00 x 18
Tyres front 120/70 ZR 17 120/70 ZR 18
rear 170/60 ZR 17 170/60 ZR 18
Dimensions and weights
Length, overall mm 2170
Width overall with mirrors mm 940 870
Seat height mm 800 780
Weight, unladen, with full tank kg 238
Max permissible weight, overall kg 450
Tank capacity ltr 20.5 17.6
Performance data
Fuel consumption
90 km/h ltr/100km 4.6
120 km/h ltr/100km 5.7
Acceleration
0-100 km/h sec 5.0 5.0
standing-start km sec 26.0 26.0
Top speed km/h 187 185

Comfort

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