Model: R 100 RT
Production  
Engine  
Power transmission  
Electrical System  
Chassis  
Dimensions/Weights  
     
Back to Index  Print
Production
Begin of Production   1978
End of Production   1984
Number Sold   18.015
Price   11.480,- DM
Engine
Motor Type   four-stroke, two-cylinder, horizontally-opposed "Boxer" engine, air-cooled
Bore x Stroke   94 x 70,6 mm
Cubic Capacity   980 ccm
Max Power   70 hp (51 KW) at 7250 rpm
Max Torque   77 Nm at 5500 rpm
Compression Ratio   9.5 : 1
Valves per Cylinder   2
Valve Control   ohv, using push rod and rocker arm
Carburation System   2 constant depression carburettors, Bing 94/40/105-106
Engine Lubrication   wet sump
Power Transmission
Clutch   dry single plate, with 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 (optional sport version 3.38 / 2.43 / 1.93 / 1.67 / 1.50)
Rear Wheel Ratio   1 : 3.0 or 1 : 2.91
Bevel / Crownwheel   11 / 33 teeth or 11 / 32 teeth
Electrical System
Ignition   battery ignition, from 1980: contact-free electronic ignition (Bosch)
Alternator   Bosch 12 V/240 W
Starter   Bosch 0.7 kW
Spark Plugs   Bosch W 225 T 30/Beru 230/14/3 A/Champion N 6 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   1.85 B 19
Rims rear   2.75 C 18
Tyres front   3.25 H 19
Tyres rear   4.00 H 18
Brakes front   dual-disc brake 260 mm dia
Brakes rear   single disc brake 260 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   234 kg
Max permissible Weight   398 kg
Ground Clearance   165 mm
Fuel Consumption   5,75 l/100 km (at constant 90 kph)
Top Speed   190 kph
Acceleration 0-100 kph   5 sec