1981 BMW R80

Make Model	BMW R 80/7
Year	1981 - 83
Engine	Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
Capacity	797.5 cc / 48.7 cu in.
Bore x Stroke	84.8 x 70.6 mm
Cooling System	Air cooled
Compression Ratio	9.2:1
Induction	2 x Bing constant depression carburetors
Ignition	Battery ignition
Alternator	Bosch 12 V/280 W
Spark Plug	Bosch W 7 D / Beru14-7DU / Champion N9YC
Starting	Electric
Max Power	50 hp / 36.4 KW @ 6500 rpm
Max Torque	58 Nm / 5.9 kgf-m / 42 ft lb @ 5500 rpm
Clutch	Dry single plate, with diaphragm spring
Transmission	5 Speed
Final Drive	Shaft
Gear Ratio	1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50
Rear Wheel Ratio	1:3.20 or 1 3.36
Front Suspension	Telescopic hydraulic forks.
Front Wheel Travel	175 mm / 6.8 in
Rear Suspension	Long swinging arm with adjustable strut.
Rear Wheel Travel	125 mm / 4.9 in
Front Brakes	2 x ∅260mm discs, 1 piston caliper
Rear Brakes	Single ∅200mm Drum
Front Wheel	MTH 2.50 x 17E
Rear Wheel	MTH 2.50 x 18E
Front Tyre	90/90-17
Rear Tyre	120/90-18
Dimensions	Length 2175 mm / 88.6 in Width 800 mm / 31.2 in Height 1106 mm / 43.5 in
Wheelbase	1447 mm / 56.9 in
Ground Clearance	140 mm / 5.51 in
Wet Weight	210 Kg / 462 lbs
Fuel Capacity	22 Litres / 5.8 gal
Average Consumption	5.9 L/100 km / 17.0 km// / 40 mpg
Standing ¼ Mile	14.5 sec
Top Speed	180 km/h / 112 mph