BMW R100RS Motorsport Special Edition
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| BMW R100RS Motorsport Special Edition | |
| Manufacturer | |
|---|---|
| Production | 1978 |
| Class | Touring |
| Engine | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Compression ratio | 9.5:1 |
| Top Speed | 196 km/h / 121.5 mph |
| Horsepower | 70.0 HP (52.2 KW) @ 7000RPM |
| Torque | 56.06 ft/lbs (76.0 Nm) @ 6000RPM |
| Ignition | Battery ignition |
| Transmission | 5 Speed |
| Frame | Double sown tubs, dual cradle |
| Suspension | Front: Telescopic fork with hydraulic shock absorber. Rear: Long swinging arm with adjustable strut. |
| Brakes | Front: 2 x ∅260mm discs, 2 piston calipers Rear: Simplex ∅200 mm drum |
| Front Tire | 3.25 - H19 |
| Rear Tire | 4.00 - H18 |
| Wheelbase | 1465 mm / 57.67 in |
| Seat Height | 820 mm / 32.3 in |
| Weight | 230 kg / 506 lbs (wet) |
| Fuel Capacity | 24 Liters / 6.3 US gal |
| Manuals | Service Manual |
The BMW R 100 RS Motorsport Special Edition was a air-cooled, four-stroke, boxer twin cylinder, 2 valves per cylinder Touring motorcycle produced by BMW in 1978. Max torque was 56.06 ft/lbs (76.0 Nm) @ 6000 RPM. Claimed horsepower was 70.0 HP (52.2 KW) @ 7000 RPM. It could reach a top speed of 196 km/h / 121.5 mph.
Engine
The engine was a Air cooled cooled Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder. The engine featured a 9.5:1 compression ratio.
Drive
Power was moderated via the Dry single plate, with diaphragm spring.
Chassis
It came with a 3.25 - H19 front tire and a 4.00 - H18 rear tire. Stopping was achieved via 2 x ∅260mm discs, 2 piston calipers in the front and a Simplex ∅200 mm drum in the rear. The front suspension was a Telescopic fork with hydraulic shock absorber. while the rear was equipped with a Long swinging arm with adjustable strut.. The R100RS Motorsport Special Edition was fitted with a 24 Liters / 6.3 US gal fuel tank. The wheelbase was 1465 mm / 57.67 in long.
Photos
1978 BMW R 100 RS Motorsport Special Edition
The Motorsport Special Edition of the R 100 RS from BMW welcomes touring riders with a special paint scheme, to make it stand out in a crows, BMW "Mag" wheels, a more efficient braking system with dual front discs and a single rear one and a blue-tinted dual seat. In all other departments, it features the same specs as the base model.
In the engine department, it sports an air-cooled, four-stroke, 980cc, boxer twin cylinder powerhouse paired to a five-speed manual transmission that can produce a claimed 76 Nm of torque and 70 horsepower.
Specifications
| Make Model | BMW R 100RS Motorsport Special Edition |
|---|---|
| Year | 1978 |
| Engine Type | Four stroke, two cylinder horizontally opposed Boxer, 2 valves per cylinder |
| Displacement | 980 cc / 59.8 cub in. |
| Bore X Stroke | 94 x 70.6 mm |
| Cooling System | Air cooled |
| Compression | 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 |
| Starting | Electric |
| Max Power | 51 kW / 70 hp / @ 7000 rpm |
| Max Torque | 76 Nm / 7.75 kgf-m / 56 ft-lb @ 6000 rpm |
| Clutch | Dry single plate, with diaphragm spring |
| Transmission | 5 Speed |
| Gear Ratio | 1st 4.40 / 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 |
| Bevel / Crown Wheel | 11/32 teeth or 10/32 teeth |
| Final Drive | Shaft |
| 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 | Simplex ∅200 mm drum |
| Front Wheel | 2.15 - B19 |
| Rear Wheel | 2.50 - B18 |
| Front Tire | 3.25 - H19 |
| Rear Tire | 4.00 - H18 |
| Dimensions | Length 2130 mm / 83.8 in Width 746 mm / 29.37 in Height 1300 mm / 51.8 in |
| Wheelbase | 1465 mm / 57.67 in |
| Seat Height | 820 mm / 32.3 in |
| Ground Clearance | 165 mm / 6.49 in |
| Wet Weight | 230 kg / 506 lbs |
| Fuel Capacity | 24 Liters / 6.3 US gal |
| Consumption Average | 4.8 L/100 km / 20.8 km/l / 49 US mpg |
| Standing ¼ Mile | 13.9 sec / 157 km/h / 97.3 mph |
| Top Speed | 196 km/h / 121.5 mph |