BMW R80 G/S (1980)

Technical Specifications
1980 BMW R80 G/S
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
56.7 Nm / 41 ft lb @ 5000 rpm
2 constant depression carburettors, Bing V 64/32/305  -  64/32/306
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 N10Y
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

2230 mm (87.79 inches)
820 mm (32.28 inches)
1150 mm (45.27 inches)
1465 mm (57.67 inches)
860 mm (33.90 inches)
175 mm (6.88 inches)
186 kg
19.5 litres

Telescopic fork with hydraulic shock absorber
BMW Monolever swinging arm
3.25 x R19S
4.00 x R18S
Single disc brake 260 mm / 10.23 in diameter. Brembo 2 piston caliper
Simplex drum brake 200 mm / 7.87 in diameter

Image: http://micapeak.com/bmw/gs/gs_mono.html
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