BMW - R 100 RS 77

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Bike Info

CC:
1000
R 100 RS Parts and accessories

Service

Valve Clearance Cold - Exhaust:
0.15 mm
Valve Clearance Cold - Inlet:
0.10 mm

Brakes

Front:
Twin Disc
Rear:
Drum
Front Disc Size:
260 mm
Front-Pistons-per-caliper:
1
Rear Drum Size:
200 mm

Dimensions

Fuel Capacity:
24 litres
Ground Clearance:
165 mm
Height:
1300 mm
Length:
2130 mm
Seat Height:
820 mm
Wet Weight:
230 kg
Wheelbase:
1465 mm
Width:
746 mm

Electrics

Voltage:
12v
Charging System:
Alternator - Bosch 12V/240 W
Ignition:
Battery ignition. From Sept 1980: contact free electronic ignition (Bosch)
Spark Plugs:
Bosch W 225 T 30 / Beru 230/14/3 A / Champion N6Y

Engine

Type:
Air Cooled 4 Stroke SOHC Flat Twin
Bore x Stroke:
94 x 70.6 mm
Carburation:
2 constant depression carburettors, Bing 94/40/105 - 94/40/106
Compression Ratio:
9.5:1
Displacement:
980 cc
Lubrication System:
Wet sump
No. of Valves:
4
Starting:
Electric - Bosch 0.6 hp
Valve Train:
OHV, using push rod and rocker arm
 

Transmission

Clutch Type:
Dry single plate with diaphragm spring
Final Drive:
Shaft
Gearchange Pattern:
1 N 2 3 4 5
Gear Ratio 1st:
4.4:1
Gear Ratio 2nd:
2.86:1
Gear Ratio 3rd:
2.07:1
Gear Ratio 4th:
1.67:1
Gear Ratio 5th:
1.50:1
Transmission:
5 Speed

Misc.

Frame:
Double loop tubular frame with bolt on rear section
Motorcycle Style:
Sports
Number Produced:
33,648
Place of Manufacture:
Spandau - Berlin - Germany

Power

Fuel Consumption:
5.75 litres 100 Km / / 49 mpg
Max Power Output:
70 hp (51 KW) at 7,250 rpm
Max Torque:
76 Nm / 56 ft lb at 5,500 rpm
Top Speed:
124 mph

Suspension

Front:
Telescopic fork with hydraulic shock absorber
Rear:
Long swinging arm with adjustable strut

Tyres

Front:
325-H19 Tubed
Rear:
400-18 Tubed

Wheels

Front:
1.85 B 19
Rear:
2.50 B 18