Technical specifications
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| Model: |
R 80RT |
| Years: |
1981 |
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Engine:
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Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder.
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Capacity:
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797.5 cc / 48.7 cu in.
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Bore x Stroke:
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84.8 x 70.6 mm
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Cooling System:
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Air cooled
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Compression Ratio:
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9.2:1
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Induction:
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2 x Bing constant depression carburetors
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Ignition:
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Battery ignition
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Alternator:
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Bosch 12 V/280 W
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Spark Plug:
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Bosch W 7 D / Beru14-7DU / Champion N9YC
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Starting:
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Electric
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Max Power:
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36.4 kW / 50 hp @ 6500 rpm
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Max Torque:
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58 Nm / 5.9 kgf-m / 42 ft/lb @ 4000 rpm
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Clutch:
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Dry single plate, with diaphragm spring
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Transmission:
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5 Speed
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Final Drive:
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Shaft
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Gear Ratio:
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1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1
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Rear Wheel Ratio:
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1:3.20 or 1:3.36
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Frame:
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Double loop tubular frame with bolt on rear section
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Front Suspension:
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Telescopic hydraulic fork
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Rear Suspension:
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BMW Monolever swinging arm
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Front Brakes:
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Single ∅285mm disc, 1 piston caliper
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Rear Brakes:
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∅200mm Drum
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Front Tyre:
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100/90-H19
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Rear Tyre:
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120/90-H18
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Dry Weight:
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231 Kg / 509 lbs
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Fuel Capacity:
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19 Litres / 5.0 US gal
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