BMW Motorrad launches fast, light, DOHC Boxer and intends to go racing
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Image Gallery ( 58 images )A fully-controlled catalytic converter cuts exhaust gas emissions. Oxygen sensors in the two header tubes monitor the oxygen level and guarantee an optimum air-fuel ratio over the entire torque band.
An example of the great attention to detail that characterizes both the development and production of the BMW HP2 Sport is the exhaust pipe fixtures on the single-piece, self-supporting carbon rear. These are thermally decoupled while, at the same time, compensating for the change in length of the exhaust system during warming and cooling. The hump also boasts sophisticated ventilation openings, used to effectively deflect the heat away from the underseat exhaust. Additional features of the exhaust system are the highly attractive design and the impressive Boxer sound that escapes from the high-volume silencer.
Close-ratio six-speed gearbox
In contrast to the gearbox of the BMW R 1200 S, the first and second gear have higher ratios so that the gear increments are closer. This results in a lower drop in revs when changing up in gear. This configuration is also a typical racing feature that benefits the dynamic driving characteristics.
Straight from the racing world: Gearshift assistant
A further pedigree racing detail is the standard gearshift assistant of the BMW HP2 Sport, also described as an automatic gearshift. The system allows rapid gear change without reducing the gas or using the clutch. If the gear lever is activated, the electronic engine control throttles back the ignition angle and reduces the injection. This means the power unit is at “low load” for the gearshift so it is possible to change gear rapidly without needing the clutch. The gearshift assistant operates under normal riding conditions and, on request, for racing with an inverted switching scheme (pressure sensor as special equipment). However, if the rider actuates the clutch, the system remains inactive. The BMW HP2 Sport therefore always leaves the decision of whether or not the gearshift assistant is deployed to the driver.
The steel tube midframe comes from the BMW R 1200 S, but was adapted to the new single-piece and self-carrying CFK rear in the area around the location points.
Telelever with Öhlins sport spring strut
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