BMW R80/7 (1977)

Technical Specifications
1977 BMW R80/7
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
9.2:1
55 hp (40 KW) @ 7000 rpm or 50 hp (37 Kw) @ 7250 rpm
64 Nm / 47 ft lb @ 5500 rpm or 58 Nm / 42 ft lb @ 5500 rpm
2 constant depression carburettors, Bing 64/32/201 -  64/32/202
5-speed; Dog type gearbox (ratchet foot lever)
Cardan
Dry single plate, with diaphragm spring
Battery ignition
Electric starter
Wet sump

Bosch W 175 T 30 / Beru 175/14/3 A / 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

2180 mm (85.82 inches)
746 mm (29.37 inches)
1080 mm (42.51 inches)
1465 mm (57.67 inches)
810 mm (31.90 inches)
165 mm (56.49 inches)
215 kg
24 litres

Telescopic fork with hydraulic shock absorber
Long swinging arm with strut
3.25 x R19S
4.00 x R18S
Single disc brake 260 mm / 10.23 in diameter. ATE 1 piston caliper
Simplex drum brake 200 mm / 7.87 in diameter

Image: http://www.motoshistoricas.com/r80-7.html
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