BMW R80RT Mono (1984)

Technical Specifications
1984 BMW R80RT Mono
Engine
Engine type
Bore x Stroke
Displacement
Valves
Compression ratio
Max Power
Max Torque
Fuel system
Transmission
Final drive
Clutch
Ignition type
Starting system
Lubrication
Exhaust
Spark plug
Generator
Gear ratios

Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled
84.8 x 70.6 mm (3.33 x 2.77 inches)
797.5 cc
2 valves per cylinder; OHV, using push rod and rocker arm
8.2:1
50 hp (37 KW) @ 6500 rpm
 58 Nm / 42 ft lb @ 4000 rpm
2 constant depression carburettors, Bing V 64/32/353 -  64/32/354
5-speed; Dog type gearbox (ratchet foot lever)
Cardan
Dry single plate, with lever action diaphragm spring
Contact free electronic ignition (Bosch)
Electric starter
Wet sump

Bosch W 7 D / Beru14-7D / Champion N9Y
Bosch 12 V/280 W
4.4 / 2.86 / 2.07 / 1.67 / 1.50
Dimensions
Frame type
Castor
Overall length
Overall width
Overall height
Wheelbase
Seat height
Ground clearance
Dry weight
Fuel capacity
Colors
Suspension (front)
Suspension (rear)
Tyre (front)
Tyre (rear)
Brake (front)
Brake (rear)

Double loop tubular frame with bolt on rear section

2175 mm (85.62 inches)
960 mm (37.79 inches)
1478 mm (58.18 inches)
1447 mm (56.96 inches)
807 mm (31.80 inches)
140 mm (5.51 inches)
227 kg
22 litres

Telescopic fork with hydraulic shock absorber
BMW monolever swinging arm
90/90 R18 51 H
120/90 R18 65 H
Single or twin disc brake 285 mm  / 11.22 inch diameter. Brembo 2 piston caliper
Simplex drum brake 200 mm / 7.87 in diameter

Image: http://www.bmbikes.co.uk/mechanicalpages/rseriesmechanical.htm
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