BMW R 100S SPECIFICATIONS, PRICE & IMAGES

Bike Features

Make Model:
BMW R 100S

Year:
1979 – 80

Engine:
Four stroke,
two cylinder horizontally opposed Boxer, 2 valves per cylinder

Capacity:
980 cc / 59.8 cu in

Bore x Stroke:
94 x 70.6 mm

Cooling System:
Air cooled

Compression Ratio:
9.5:1

Lubrication:
Wet sump

Induction:
2 x constant depression carburettors,
Bing 94/40/105 – 94/40/106

Ignition :
Battery ignition

Alternator:
Bosch 12V/240 W

Battery:
Bosch 0.6 hp (from 1978: 0.7 Kw)

Starting:
Electric

Max Power :
51 kW / 70 hp @ 7000 rpm

Max Torque:
76 Nm / 7.7 kgf-m / 56 ft-lb @ 6000 rpm

Clutch :
Dry single plate, with diaphragm spring

Transmission :
5 Speed 

Gear Ratio:
1st

4.4 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50 : 1

Gear Ratio Sport Version:

1st

3.38 / 2nd 2.43 / 3rd 1.93 / 4th 1.67 / 5th 1.50

Rear Wheel Ratio:

1:2.91 or 1:3.00

Frame:
Double sown tubs, dual cradle

Front Suspension:

Telescopic fork with hydraulic shock
absorber.

Front Wheel Travel:
200 mm / 7.8 in

Rear Suspension:

Long swinging arm with adjustable strut.

Rear Wheel Travel:
125 mm / 4.9 in

Front Brakes:
2 x ∅260mm Discs, 2 piston calipers

Rear Brakes:
∅260mm Drum

Front Wheel:
1.85 B 19

Rear Wheel:
2.15 B 18

Front Tyre:
3.25-19

Rear Tyre:
4.00-18

Dimensions:
Length 
2130 mm / 83.8 in
Width      746 mm / 29.37 in
Height  
1210 mm / 47.6 in

Wheelbase:
1465 mm / 57.67 in

Seat Height:
820 mm / 32.3 in

Ground Clearance:
165 mm / 6.49 in

Wet Weight :
220 kg / 484 lbs

Fuel Capacity :
24 Litres / 6.3 US gal

Consumption Average:
5.2 L/100 km / 19.1 km/l / 45 US mpg

Standing
¼ Mile  :
12.974 sec. / 166.3 km/h / 103.32 mph

Top Speed:
190.7 km/h / 118.5 mph