BMW R100S
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| Manufacturer | BMW Motorrad |
|---|---|
| Parent company | BMW |
| Production | 1976-1980 |
| Predecessor | BMW R90S |
| Engine | 980 cc air-cooled two-cylinder boxer engine |
| Bore / stroke | 94 mm × 70.6 mm (3.70 in × 2.78 in) |
| Compression ratio | 9.5:1 |
| Top speed | 200 km/h (120 mph) |
| Power |
65 hp (48 kW) @ 6,600 rpm (1976-1977) 70 hp (52 kW) @ 7,250 rpm (1978-1980) |
| Torque |
75 N·m (55 lb·ft) @ 5,500 rpm (1976-1977) 77 N·m (57 lb·ft) @ 5,500 rpm (1978-1980) |
| Transmission | 5-speed, dry single plate clutch |
| Suspension |
Front: 200 mm (7.9 in) telescopic fork Rear: 125 mm (4.9 in) swingarm |
| Brakes |
Front: Double 260 mm (10 in) disc brake Rear: 200 millimetres (7.9 in) drum brake (1976-1977) Rear: 260 mm (10 in) disc brake (1978-1980) |
| Tires |
Front: 3.25 H 19 Rear: 4.00 H 18 |
| Wheelbase | 1,465 mm (57.7 in) |
| Dimensions |
L: 2,130 mm (84 in) W: 746 mm (29.4 in) H: 1,210 mm (48 in) |
| Seat height | 820 mm (32 in) |
| Weight | 220 kg (490 lb) (wet) |
| Fuel capacity | 24 L (5.3 imp gal; 6.3 US gal) |
The R100S is a two-cylinder four-stroke air-cooled boxer engine motorcycle built by BMW Motorrad, from 1976 to 1980.[1]
Engine
The engine is a 980 cc (60 cu in) two-cylinder four-stroke air-cooled boxer engine, with two pushrod operated overhead valves per cylinder, and is fueled by two constant depression carburators, built by Bing Carburetor.
The engine utilizes a wet sump lubrication system.
Transmission
The motorcycle features a dry single-plate clutch, and 5-speed gearbox, utilizing gear ratios of 4.4/2.86/2.07/1.67/1.50:1 and 3.38/2.43/1.93/1.67/1.50:1 for the optional sport version.
Chassis
The chassis consists of a double loop tubular frame, using a telescopic, 200 mm (7.9 in) travel hydraulically dampened fork for suspension of the front wheel, and a 125 mm (4.9 in) travel swingarm suspension of the rear wheel.
Brakes
The front wheel is braked by two 260 mm (10 in) disc brakes, using ATE single piston calipers. The rear wheel is braked by a 200 mm (7.9 in) drum brake, and by a single 260 mm (10 in) disc brake from 1978 and on.
Color schemes
The R100S was produced in Motorsport White, Ocean Blue (Blue Motorsport), Dunkel Red, Classic Black, Hell Silver, Red Metallic, and Two Tone Red, with the addition of some custom and limited edition color schemes.[2]
References
- ↑ Hawksley, Phil. "BMW R100S Specifications". BM Bikes Information. BM Bikes. Retrieved 2014-10-14.
- ↑ Hawksley, Phil. "BMW R100S Colour Schemes". BM Bikes Information. BM Bikes. Retrieved 2014-10-14.
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