Technical specifications
|
| Model: |
R 80/7 |
| Years: |
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
|