Model: R 80 RT
Production  
Engine  
Power transmission  
Electrical System  
Chassis  
Dimensions/Weights  
     
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Production
Begin of Production   1982
End of Production   1984
Number Sold   7.315
Price   10.990,- DM
Engine
Motor Type   four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled
Bore x Stroke   84,8 x 70,6 mm
Cubic Capacity   797,5 ccm
Max Power   50 hp (37 KW) at 6500 rpm
Max Torque   59 Nm at 3500 rpm
Compression Ratio   8.2 : 1
Valves per Cylinder   2
Valve Control   ohv, using push rod and rocker arm
Carburation System   2 constant depression carburettors, Bing V 64/32/305-64/32/306
Engine Lubrication   wet sump
Power Transmission
Clutch   dry single plate, with lever-action diaphragm spring
Number of Gears   5
Gear Selection   dog-type gearbox (ratchet foot lever)
Gear Ratios   4.4 / 2.86 / 2.07 / 1.67 / 1.50 :1
Rear Wheel Ratio   1 : 3.36
Bevel / Crownwheel   11 / 37 teeth
Electrical System
Ignition   Contact-free electronic ignition (Bosch)
Alternator   Bosch 280 W
Starter   Bosch 0.7 kW
Spark Plugs   Bosch W 7 D/Beru 14-7D/Champion N 10 Y
Chassis
Type of Frame   double-loop tubular frame with bolt-on rear section
Front Suspension   telescopic fork with hydraulic shock absorber
Rear Suspension   long swinging arm with adjustable strut
Spring Travel front/rear   200 / 125 mm
Rims front   2.15 B 19
Rims rear   2.50 B 18
Tyres front   3.25 H 19
Tyres rear   4.00 H 18
Brakes front   single disc brake 260 mm dia
Brakes rear   simplex drum brake 200 mm dia
Dimensions/Weights
Length x Width x Height   2210 x 746 x 1465 mm
Wheel Base   1465 mm
Tank Capacity   24 l
Unladen Weight, full Tank   235 kg
Max permissible Weight   440 kg
Ground Clearance   130 mm
Fuel Consumption   5,5 l/100 km (at constant 90 kph)
Top Speed   161 kph
Acceleration 0-100 kph   7,1 sec