BMW R100CS

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R100CS.jpg
BMW R100CS
Manufacturer
BMW
Also called R 100 CS
Production 1979 - 1984
Class Naked
Engine
air-cooled, four-stroke, boxer two cylinder, 2 valves per cylinder
Bore / Stroke 94.0mm x 94.0mm
Compression ratio 9.5:1
Top Speed 121 mph (194 km/h)
Horsepower 70.0 HP (52.2 KW) @ 7000RPM
Torque 56.06 ft/lbs (76.0 Nm) @ 6000RPM
Spark Plug NGK BP6ES [1]
Battery YUASA YIX30L-BS [1]
Transmission Gear box: 5-speed, manual
Clutch: dry, single plate, diaphragm spring
Final Drive Shaft
Suspension Front: hydraulic telescopic fork
Rear: dual adjustable shocks
Brakes Front: dual 260mm discs
Rear: 200mm drum
Front Tire 3.25-19 [1]
Rear Tire 4.00-18 [1]
Wheelbase 57.72 inches (1466 mm)
Length 83.11 inches (2111 mm)
Width 29.41 inches (747 mm)
Seat Height 32.28 inches (820 mm)
Weight 220.0 kg (wet)
Fuel Capacity 6.34 Gallon (24.00 Liters)
Manuals Service Manual

The BMW R 100 CS was a air-cooled, four-stroke, boxer two cylinder, 2 valves per cylinder Naked motorcycle produced by BMW between 1979 and 1984. It could reach a top speed of 121 mph (194 km/h). Max torque was 56.06 ft/lbs (76.0 Nm) @ 6000 RPM. Claimed horsepower was 70.0 HP (52.2 KW) @ 7000 RPM.

Just a few years after introducing the BMW R90/6 and BMW R90S, BMW upped the capacity of its range-topping flat-twins to 980cc for the 1977 season in the form of the '/7' series, comprising the R100/7 tourer, the cockpit-faired R100S sportster and the fully faired R100RS superbike. Within a couple of years the R100/7 'naked' had been re-titled 'R100T' and given the 65bhp engine previously fitted to the R100S, while from 1980 the latter gained the 70bhp engine that had been enjoyed by the R100RS from the start, becoming the R100CS.

Engine

The engine was a air cooled air-cooled, four-stroke, boxer two cylinder, 2 valves per cylinder. A 94.0mm bore x 94.0mm stroke result in a displacement of just 980.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).

Drive

The bike has a 5-speed, manual transmission. Power was moderated via the dry, single plate, diaphragm spring.

Chassis

It came with a 3.25 - H19 front tire and a 4.00 - H18 rear tire. Stopping was achieved via dual 260mm discs in the front and a 200mm drum in the rear. The front suspension was a hydraulic telescopic fork while the rear was equipped with a dual adjustable shocks. The R 100 CS was fitted with a 6.34 Gallon (24.00 Liters) fuel tank. The wheelbase was 57.72 inches (1466 mm) long.

1979 BMW R 100 CS

The 1979 MY BMW R 100 CS is the House of Munich response to riders looking for more thrills from their machine, without losing any of the brand's trademark reliability, quality-finish and easy-to-maintain traits. At its heart lies an air-cooled, four-stroke, 980cc, boxer two cylinder engine mated to a five-speed manual transmission that can produce a claimed 70 horsepower and 76 Nm of torque.

It also comes with standard features such as laced wheels, a nose-fairing with a windscreen, a large, round headlamp, dual front disc brakes, a rear brake drum, a dual seat, a rear luggage rack, pillion grab rails, a chromed, dual exhaust system and a hydraulic telescopic front fork coupled to dual adjustable shocks as a rear suspension.


1980 BMW R 100 CS

1980 BMW R 100 CS

The 1980 MY BMW R 100 CS comes with standard fittings such as laced wheels, a nose-fairing with a windscreen, a large, round headlamp, dual front disc brakes, a rear brake drum, a dual seat, a rear luggage rack, pillion grab rails, a chromed, dual exhaust system and a hydraulic telescopic front fork coupled to dual adjustable shocks as a rear suspension.

In the engine department, it sports an air-cooled, four-stroke, 980cc, boxer two cylinder powerplant paired to a five-speed manual transmission that can reach a maximum power output of 70 horsepower and 76 Nm of torque.


1981 BMW R 100 CS

The 1981 MY BMW R 100 CS is a liter-class naked that sports an air-cooled, four-stroke, 980cc, boxer two cylinder powerhouse mated to a five-speed manual transmission that can produce a claimed 70 horsepower and 76 Nm of torque.

Also, it boasts features such as laced wheels, a nose-fairing with a windscreen, a large, round headlamp, dual front disc brakes, a rear brake drum, a dual seat, a rear luggage rack, pillion grab rails, a chromed, dual exhaust system and a hydraulic telescopic front fork coupled to dual adjustable shocks as a rear suspension.


1982 BMW R 100 CS

The House of Munich has been designed as a sportier and more comfortable version of the base R 100. It comes with laced wheels, a nose-fairing with a windscreen, a large, round headlamp, dual front disc brakes, a rear brake drum, a dual seat, a rear luggage rack, pillion grab rails, a chromed, dual exhaust system and a hydraulic telescopic front fork coupled to dual adjustable shocks as a rear suspension.

Also, it boasts a maximum power output of 70 horsepower and 76 Nm of torque from its four-stroke, air-cooled, 980cc, boxer twin cylinder powerplant paired to a five-speed manual transmission with a shaft final drive.


1983 BMW R 100 CS

If you are a rider on the market for a liter-class naked machine, that offers higher levels of comfort, as well as top-notch performance, then the 1983 MY BMW R 100 CS may be the right choice for you. It has, at its heart, a four-stroke, air-cooled, 980cc, two cylinder boxer engine mated to a five-speed manual transmission that can produce a claimed 70 horsepower and 76 Nm of torque.

It also comes with laced wheels, a nose-fairing with a windscreen, a large, round headlamp, dual front disc brakes, a rear brake drum, a dual seat, a rear luggage rack, pillion grab rails, a chromed, dual exhaust system and a hydraulic telescopic front fork coupled to dual adjustable shocks as a rear suspension.


1984 BMW R 100 CS

1984 BMW R 100 CS 1984 BMW R 100 CS 1984 BMW R 100 CS 1984 BMW R 100 CS

The 1984 MY BMW R 100 CS sports a four-stroke, air-cooled, 980cc, boxer twin cylinder powerhouse mated to a five-speed manual transmission that can produce a claimed 70 horsepower and 73 Nm of torque. In addition, it comes with standard fittings such as laced wheels, a nose-fairing with a windscreen, a large, round headlamp, dual front disc brakes, a rear brake drum, a dual seat, a rear luggage rack, pillion grab rails, a chromed, dual exhaust system and a hydraulic telescopic front fork coupled to dual adjustable shocks as a rear suspension.


In Media

References

  1. 1.0 1.1 1.2 1.3 2019 Western Power Sports Catalog. Western Power Sports. 2019.