BMW - R 100 CS 81

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Bike Info

CC:
1000
R 100 CS 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:
2
Rear Drum Size:
200 mm

Dimensions

Fuel Capacity:
24 litres
Ground Clearance:
165 mm
Height:
1210 mm
Length:
2110 mm
Seat Height:
820 mm
Wet Weight:
220kg
Wheelbase:
1465 mm
Width:
746 mm

Electrics

Voltage:
12v
Charging System:
Alternator - Bosch 280 W
Ignition:
Contact free electronic ignition (Bosch)
Spark Plugs:
Bosch W 5 D / Beru 14-5D / Champion N6Y
 

Engine

Type:
Air Cooled 4 Stroke Flat Twin
Bore x Stroke:
94 x 70.6 mm
Carburation:
2 constant depression carburettors, Bing 94/40/111 - 94/40/112
Compression Ratio:
9.5 : 1
Displacement:
980 cc
Lubrication System:
Wet sump
No. of Valves:
4
Starting:
Electric - Bosch 0.5 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:
Roadster
Number Produced:
4038
Place of Manufacture:
Spandau - Berlin - Germany

Power

Max Power Output:
70 hp (51 KW) at 7,250 rpm
Max Torque:
76 Nm / 56 ft lb at 6,000 rpm
Top Speed:
124 mph

Tyres

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