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| Frame and Suspension |
| The aluminum frame has exceptional torsion rigidity. The engine acts as a load-bearing element and also incorporates the pivot for the single rear swinging arm. The rear frame section is a steel tube structure, bolted to the main frame. The front wheel is located by a conventional telescopic fork with stanchions 43 mm in diameter and 140 mm of travel. It is held in two cast aluminum fork bridges. The fixed and sliding tubes overlap well, to provide outstanding rigidity. The steering damper ensures maximum directional stability even when the bike is ridden hard. The dynamic design and individuality of the F 800 ST is emphasized by the imposing appearance of the aluminum swinging arm. Its combination with low-maintenance toothed belt drive is unique in this bike segment. The belt is wider belt than the one used on the F 650 CS and made from a material that guarantees a lifetime of at least 40,000 kilometers (25,000 miles). Eccentric location ensures that the rear wheel is always correctly positioned. In addition, wheel removal and fitting are simplified, and belt tensioning can be checked and adjusted easily and quickly. The central rear suspension strut is directly pivoted to the swinging arm. Both spring preload and rebound damping can be adjusted conveniently and easily with a hand wheel. |
| Brakes |
| Two 320 mm diameter front brake disks and high-quality Brembo four-piston hydraulic callipers with sintered metal pads provide optimal stopping power. At the rear, a 265 mm diameter brake disk and a twin-piston calliper are used. Armored flexible steel brake hoses add to the bike’s appearance and also remain firm under pressure to guarantee a precisely defined, stable brake operating point. The brake and clutch levers can be adjusted for easy reach. |
| Electronics and electrics |
| A special feature of the F 800 ST is the design of its electrical system. The BMW Motorrad Single Wire System transmits all data relevant to the bike and its performance by way of a CAN bus to the various control units and the central electronics (ZFE). The CAN bus is a data-network concept which links all the control units together by means of a shared signal path. This technology keeps the main wiring harness simple and also permits more detailed fault diagnosis. Electronic accessories can also be connected more easily by way of an accessory plug. The geometrically optimized clear-glass headlight with free-form reflector surfaces contains two H7 halogen bulbs (1 x low beam, 1 x high beam and has an excellent light output. It is easily accessible for bulb changes. |
| Body Panels |
| The F 800 ST, with full fairing and higher windshield, protects the rider's legs and head very effectively. This helps to guarantee supremely confident, stress-free riding in all situations. The full fairing also has a technically optimized airflow to the radiator. The fairing consists of several separate elements that can easily be removed if necessary for service. The fuel tank holds 16 liters (4.2 gallons). In order to optimize the bike’s handling, it is located as on the F 650, close to the center of gravity in the triangulated section of the frame, under the seat. A fuel tank filler cap is provided on the right. This has the additional advantage that fuel can easily be added when the bike is outfitted with a tank-top bag. The fuel capacity, while not huge at 4.2 gallons is appropriate in relation to the very modest fuel consumption of approximately 4.4 liters per 100 kilometers (53 miles per gallon). |
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Ergonomics |
| The dual seat on the F 800 S/ST has been optimized to take the rider’s inner leg length into account. Since the new twin-cylinder engine is extremely compact, the body panels and dual seat can also be very narrow. The dual seat’s width is reduced to a minimum at the front, so that the rider can easily put a foot on the ground, but the knee angle is still comfortable. The standard dual seat is at a height of 820 mm (32.3 inches) which is ideal for riders who are 5.6 feet, or more, tall. The ‘ergonomic triangle’ consisting of footrests, dual seat and handlebar, has been designed for relaxed riding. The lowered dual seat is 790 mm (31.1 inches) high and ideal for riders about 5.2 to 5.6 feet tall. |
| New for 2008 |
New standard equipment includes:
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