R100RS Mono

Start of Production

1986

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End of Production

1992

Numbers Produced

6,081

Price

15,700 DM

Engine

Motor Type

Four-stroke two cylinder horizontally opposed "Boxer" engine, air cooled

Bore x Stroke

94 x 70.6 mm (3.70 x 2.78 in)

Displacement

980 cc

Max Power

60 hp (44 KW) at 6,500 rpm

Max Torque

74 Nm / 54 ft lb at 3,500 rpm

Compression Ratio

8.45 : 1

Valves Per Cylinder

2

Valve Control

OHV, using push rod and rocker arm

Carburation System

2 constant depression carburettors, Bing V 64/32/363 -  64/32/364

Engine Lubricating System

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)

Gearbox Ratios

4.4 / 2.86 / 2.07 / 1.67 / 1.50

Rear Wheel Ratio

1 : 3.00

Bevel/Crownwheel

11 / 33 teeth

Electrical System

Ignition System

Contact free electronic ignition (Bosch)

Alternator

Bosch 280 W

Starter

Bosch 0.7 Kw

Spark Plugs

Bosch W 7 DC / Beru 14-7 DU

Chassis

Type of Frame

Double loop tubular frame with bolt on rear section

Front wheel suspension

Telescopic fork with hydraulic shock absorber

Rear wheel suspension

BMW Monolever swinging arm

Spring Travel Front/Rear

175 / 121 mm ( 6.88 / 4.76 in)

Wheel Rims, Front

MTH 2.50 x 18 E

Wheel Rims, Rear

MTH 2.50 x 18 E

Tyres, Front

90/90 18 51 H

Tyres, Rear

120/90 18 65 H

Brakes, Front

Single disc brake 285 mm / 11.22 in diameter. Brembo 2 piston caliper

Brakes, Rear

Simplex drum brake 200 mm / 7.87 in diameter

Dimensions / Weights

Length x Width x Height

2175 x 800 x 1380 mm (85 62 x 31.49 x 54.33 in)

Wheel Base

1447 mm / 56.96 in

Fuel Tank Capacity

22 litres / 4.83 gal / 5.81 gal US

Unladen Weight with Full Tank

229 Kg / 504 lb

Max. Permissible Weight

440 Kg / 969 lb

Ground Clearance

140 mm / 5.51 in

Seat Height (Unladen)

807 mm (31.8 inches)

Fuel Consumption (at constant 90 Kph)

4.3 litres 100 Km / 65 mpg / 54 mpg US

Top Speed

185 Kph / 114 mph

Acceleration 0 - 100 Kph / 62 mph

5 seconds