Spec Sheet
The information below is specific to the BMW - R 100 S (up to 08/80) 80, showing anything for service information to the amount of fork oil or even the tyre pressures. If you would like to contribute any missing information, please use the edit link below.
Back.BMW - R 100 S (up to 08/80) 80
Bike Info
CC:
1000
Service
Valve Clearance Cold - Exhaust:
0.15 mm
Valve Clearance Cold - Inlet:
0.10 mm
Brakes
Front:
Twin Disc
Rear:
Disc
Brake fluid:
DOT 3
Front Disc Size:
260 mm
Front-Pistons-per-caliper:
1
Rear Disc Size:
260 mm
Dimensions
Fuel Capacity:
24 litres
Ground Clearance:
165 mm
Height:
1210 mm
Length:
2130 mm
Seat Height:
820 mm
Wet Weight:
220 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:
NGK BP7ES 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 94/40/103 - 94/40/104 or 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 0.5 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:
11,762
Place of Manufacture:
Spandau - Berlin - Germany
Power
Max Power Output:
65 hp (48 KW) at 6,600 rpm. 1978: 70 hp (51 Kw) at 7,250 rpm
Max Torque:
75 Nm / 55 ft lb at 5,500 rpm 1978: 77 Nm / 56 ft lb at 5,500 rpm
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:
2.15 B 18
Add information to the model
All information presented on the website is given to the best of our knowledge at the given time. All information is intended to only as a guide. A major Japanese manufacturer's quote:
We reserve the right to vary our specification with or without notice, and as such time and in such manner as we think fit.