Type Water-cooled, 2-cylinder, 4-stroke, four valves per cylinder, two overhead camshafts, dry sump lubrication
Bore x stroke 82 mm x 75.6 mm
Capacity 798 cc
Rated output 71 hp (52 kW) at 7,000 rpm
Max. torque 55 lb/ft (75 Nm) at 4,500 rpm
Compression ratio 12.0 : 1
Mixture control / engine management Electronic intake pipe injection / digital engine management (BMS-K)
Emission control Closed-loop 3-way catalytic converter, emission standard EU-3
Performance / fuel consumption
Maximum speed Approx. 115 mph (185 km/h)
Fuel consumption per 100 km at constant 90 km/h 3.7 l
Fuel consumption per 100 km at constant 120 km/h 5.2 l
Fuel type Unleaded Regular
Electrical system
Alternator three-phase alternator 400 W
Battery 12 V / 14 Ah, maintenance-free
Power transmission
Clutch Multiple-disc clutch in oil bath, mechanically operated
Gearbox Constant mesh 6-speed gearbox integrated into crankcase
Drive Endless O-ring chain with shock damping in rear wheel hub
Chassis / brakes
Frame Tubular steel space frame, load-bearing engine
Front wheel location / suspension Telescopic fork, Ø 41 mm
Rear wheel location / suspension Cast aluminium dual swing arm, central spring strut, spring pre-load hydraulically adjustable (continuously variable) at handwheel, rebound damping adjustable
Suspension travel front / rear 7.1 inches (180 mm) / 6.7 inches (170 mm)
Wheelbase 62.0 inches (1575 mm)
Castor 3.6 inches (92 mm)
Steering head angle 64°
Wheels Cast aluminium
Rim, front 2.50 x 19"
Rim, rear 3.50 x 17"
Tyres, front 110/80 - 19 tubeless
Tyres, rear 140/80 - 17 tubeless
Brake, front Single disc, diameter 11.8 inches (300 mm), double-piston floating caliper
Brake, rear Single disc, diameter 10.4 inches (265 mm), single-piston floating caliper
ABS Optional extra: BMW Motorrad ABS (can be switched off)
Dimensions / weights
Length 89.7 inches (2280 mm)
Width (incl. mirrors) 33.2 inches (890 mm)
Height (excl. mirrors) 48.8 inches (1240 mm)
Seat height, unladen weight 32.3 inches (820 mm) (low seat: 31.3 inches [790 mm]; lowered suspension: 30.1 inches [765 mm])
Inner leg curve, unladen weight 71.7 inches (1820 mm) (low seat: 70.1 inches [1780 mm]; lowered suspension: 67.3 inches [1,710 mm])
Unladen weight, road ready, fully fuelled 1) 439 lbs (199 kg)
Dry weight 2) 377 lbs (171 kg)
Permitted total weight 952 lbs (432 kg) (with lowered suspension 769 lbs [349 kg])
Payload (with standard equipment) 522 lbs (237 kg) (with lowered suspension 331 lbs [150 kg])
Usable tank volume 4.2 U.S. gallons
Reserve approx. 1 U.S. gallon
Technical data relate to the unladen weight (DIN)
1) According to guideline 93/93/EWG with all fluids, fuelled with at least 90% of usable tank volume
2) Unladen weight without fluids
source: http://www.bmwmotorcycles.com
