BMW R 100rs 1977 Specifications

Complete specifications and review of the 1977 BMW R 100rs

BMW R 100rs 1977 Specifications

Specifications

SpecificationValue
BrandBMW
ModelR 100rs
Year1977
Imagehttps://cdn.motorcycles-specs.com/bmw-r-100rs-1977.jpg
SpecificationValue
Year1977
AlternatorBosch 12V/240 W
Bevel / Crown wheel11/32 teeth or 10/32 teeth
Bore x Stroke94 x 70.6 mm
Capacity980 cc / 59.8 cub in.
ClutchDry single plate, with diaphragm spring
Compression Ratio9.5:1
Consumption Average4.8 L/100 km / 20.8 km/l / 49 US mpg
Cooling SystemAir cooled
DimensionsLength 2130 mm / 83.8 in Width 746 mm / 29.37 in Height 1300 mm / 51.8 in
EngineFour stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Final DriveShaft
FrameDouble sown tubs, dual cradle
Front Brakes2 x ∅260mm discs, 2 piston calipers
Front SuspensionTelescopic fork with hydraulic shock absorber.
Front Tyre3.25 - H19
Front Wheel2.15 - B19
Front Wheel Travel200 mm / 7.8 in
Fuel Capacity24 Litres / 6.3 US gal
Gear Ratio1st 4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1
Gear Ratio Sport Version1st 3.38 / 2nd 2.43 / 3rd 1.93 / 4th 1.67 / 5th 1.50
Ground Clearance165 mm / 6.49 in
IgnitionBattery ignition
Induction2 x Constant depression carburettors, Bing 94/40/105 - 94/40/106
LubricationWet sump
Max Power51 kW / 70 hp / @ 7000 rpm
Max Torque76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm
Rear BrakesSimplex ∅200 mm drum
Rear SuspensionLong swinging arm with adjustable strut.
Rear Tyre4.00 - H18
Rear Wheel2.50 - B18
Rear Wheel Ratio1:2.91 or 1:3.00
Rear Wheel Travel125 mm / 4.9 in
Road TestCycle World 1976
Seat Height820 mm / 32.3 in
Standing ¼ Mile13.9 sec / 157 km/h / 97.3 mph
StartingElectric
Top Speed196 km/h / 121.5 mph
Transmission5 Speed
Wet Weight230 kg / 506 lbs
Wheelbase1465 mm / 57.67 in