Data sheet
 
Engine
Type   Air/oil-cooled 2-cylinder 4-stroke Boxer engine, one camshaft and four valves per cylinder, central compensation shaft
Bore / stroke   101 mm x 73 mm/87,5 mm x 73 mm*
Capacity   1,170 ccm/878 ccm*
Rated output   81 kW (110 bhp) at 7500 rpm/61 kW (83 bhp) at 7250 rpm*
Max. torque   115 Nm at 6000 rpm/83 Nm at 5500 rpm*
Compression ratio   12.0:1/11.0:1*
Mixture control / engine management   Electronic intake pipe injection/digital engine management: BMW engine management, BMS-K with overrun fuel cut-off, dual ignition
Emission control   Closed-loop 3-way catalytic converter
Performance / fuel consumption
Maximum speed   More than 200 km/h / 195km/h* (depends on the equipment)
Fuel consumption over 100 km at constant 90 km/h   4.4 l
Fuel consumption over 100 km at constant 120 km/h   6.0 l
Fuel type   Unleaded premium, octane rumber 98 (RON), can also be operated with minimum octane number 95 (RON) due to automatic knock control.
Electrical system
Alternator   720 W / 60 A three-phase alternator
Battery   12 V / 19 Ah
Power transmission
Clutch   Single-disc dry clutch, hydraulically operated
Gearbox   Constant mesh 6-speed gearbox with helical gearing
Drive   Shaft drive
 
Chassis / brakes
Frame   Three-section frame consisting of front and rear section, load bearing engine-gearbox unit
Front wheel location / suspension   BMW Motorrad Telelever; stanchion diameter 35 mm, central spring strut, rebound damping electronically adjustable with optional ESA
Rear wheel location / suspension   Die-cast aluminium single-sided swinging arm with BMW Motorrad Paralever, WAD suspension element; spring pre-load hydraulically adjustable to continuously variable levels by means of handwheel (electronically adjustable with optional ESA), rebound damping adjustable (electronically adjustable with optional ESA)
Travel front/rear   120 mm / 135 mm
Wheelbase (in normal position)   1,480 mm
Castor (in normal position)   110 mm
Steering head angle (in normal position)   63.4°
Wheels   Die-cast aluminium wheels
Rim front   3.50 x 17
Rim rear   5.50 x 17
Tyres front   120/70 ZR 17
Tyres rear   180/55 ZR 17
Brake front   EVO brake system with dual disc, floating brake discs, 320 mm diameter, four-piston fixed caliper
Brake rear   Single disc brake, diameter 265 mm, double-piston floating caliper
ABS   BMW Motorrad Integral ABS (part-integral) as standard
Dimensions / Weight
Length   2,230 mm
Width (inc. mirrors)   905 mm
Height (not inc. mirrors)   Windshield down: 1,430 mm
Windshield up: 1,560 mm
Seat height, unladen weight   820 / 840 mm (special equipment low seat bench: 780 / 800 mm)
Unladen weight, road ready, fully fuelled 1)   259 kg
Dry weight 2)   229 kg
Permitted total weight   495 kg
Payload (with standard equipment)   236 kg
Usable tank volume   27.0 l
Reserve   Approx. 4.0 l
* R 900 RT
1) According to guideline 93/93/EWG with all fluids, fuelled with at least 90% of usable tank volume
2) Unladen weight without fluids