BMW R 100rt 1978 Specifications

Complete specifications and review of the 1978 BMW R 100rt

BMW R 100rt 1978 Specifications

Specifications

SpecificationValue
BrandBMW
ModelR 100rt
Year1978
Imagehttps://cdn.motorcycles-specs.com/bmw-r-100rt-1978.jpg
SpecificationValue
Year1978
AlternatorBosch 12V/240 W
BatteryBosch 0.6 hp (from 1978: 0.7 Kw)
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 Average5.1 L/100km / 19.6 km/l / 46 US mpg
Cooling SystemAir cooled
DimensionsLength 2110 mm / 87 in Width 746 mm / 29.37 in Height 1465 mm / 57.67 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 H-19
Front Wheel1.85 B 19
Front Wheel Travel200 mm / 7.8 in
Fuel Capacity24 Litres / 6.3 US gal
Gear Ratio1st 4.4 / 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 / 7.7 kgf-m / 56 ft-lb @ 6000 rpm
Rear BrakesSimplex ∅200 mm drum
Rear SuspensionLong swinging arm with adjustable strut.
Rear Tyre4.00 H-18
Rear Wheel2.75 C 18
Rear Wheel Ratio1:2.91 or 1:3.00
Rear Wheel Travel125 mm / 4.9 in
Seat Height820 mm / 32.3 in
Standing ¼ Mile13.8 sec / 153 km/h / 95 mph
StartingElectric
Top Speed203 km/h / 126 mph
Transmission5 Speed
Wet Weight234 kg / 515 lbs
Wheelbase1465 mm / 57.67 in