BMW R 100CS (1979 -)

The BMW R100CS – a motorcycle that embodies the perfect blend of tradition and innovation. Its 980cc opposed Twin engine, with its two valves per cylinder and push-rod design, may seem old-fashioned, but it’s a layout that has been refined and honed over decades. The result is an engine that delivers a unique character, with a smooth, linear power delivery and a distinctive exhaust note.

The R100CS is a rider’s machine, designed to encourage engagement and involvement. Its lightweight construction, weighing in at just 455 pounds with half a tank of gas, makes it a joy to handle and maneuver. The low bars and semi-rearset pegs invite the rider to sit deep and relaxed, while the small fairing provides all the protection needed for spirited riding.

For those who crave a more traditional riding experience, the R100CS is a treasure trove of classic motorcycle virtues. Its simplicity, lightness, and price make it a standout in a world of increasingly complex and expensive machines. And as the latest trend-setter from BMW, the R100CS is a testament to the marque’s enduring commitment to innovation and excellence, a motorcycle that will leave you smiling long after the engine has fallen silent.

Key Specifications

Engine Type	Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Engine Capacity	980 cc / 59.8 cu in.
Max Power	51 kw / 70 hp
Max Torque	76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm
Fuel Tank Capacity	24 L / 6.3 US gal
Weight (Wet/Kerb)	484 lbs / 220 kg
Seat Height	32.3 inches / 820 mm

*n/a – information not provided by manufacturer

All Specifications

Make & Model

Model	BMW R 100CS
Year	1979 –

Engine

Engine Type	Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder
Displacement	980 cc / 59.8 cu in.
Bore x Stroke	94 x 70.6 mm
Compression Ratio	9.5:1
Max Horsepower	51 kw / 70 hp
Max Torque	76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm
Engine Management System	2x Constant depression carburetors, Bing 94/40/111 – 94/40/112
Cooling System	Air cooled

Performance

Top Speed

198 km/h / 123 mph

*n/a – information not provided by manufacturer

Transmission

Clutch	Dry single plate, with diaphragm spring
Gearbox	5 Speed
Gear Ratios	1st4.40 / 2nd 2.86 / 3rd 2.07 / 4th 1.67 / 5th 1.50:1
Final Drive	Shaft

Electrical & Electronics System

Starter

Electric

Chassis & Suspension

Frame Type	Double sown tubs, dual cradle
Front Suspension	Telescopic fork with hydraulic shock absorber.
Front Suspension Travel	7.8 inches / 200 mm
Rear Suspension	Long swinging arm with adjustable strut.
Rear Suspension Travel	4.9 inches / 125 mm

Wheels & Brakes

Front Wheel/Rim Size	2.15 – B19
Front Tire Size	3.25 – H19
Rear Wheel/Rim Size	2.50 – B18
Rear Tire Size	4.00 – H18
Front Brakes	Single ∅260mm disc
Rear Brakes	200 Drum

Dimension & Weights

Seat Height	32.3 inches / 820 mm
Wheelbase	57.67 inches / 1465 mm
Ground Clearance	165 mm / 6.49 in
Fuel Tank Capacity	24 L / 6.3 US gal
Wet (kerb/curb) Weight	484 lbs / 220 kg

Features

980cc opposed Twin engine
Constant depression carburetors
2 valves per cylinder
Push-rods
Shaft-driven power delivery
Low weight: 455 lb. with half a tank of gas
Expensive: $6600
Relatively simple design
Use of lighter materials
Upright riding position
Belly-button fairing
Wind-tunnel-style fairing (on RS model)
Full fairing (on RT model)
Relatively low power output
Quarter mile time: 13.18 sec.
Terminal speed: 101 mph
Available in 1000cc form: RT, RS, R100, and CS
Middleweight model: R65
Explorer model: R80GS

*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com