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Saturday, September 05, 2009

BMW High Performance 2 (HP2) Sport

Gorgeous Bike from BMW.

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BMW Motorrad has announced details of its sportiest, most powerful and lightest signature Boxer series of all time. The third model of the High Performance HP range has been designed for the ambitious sports rider and features numerous exclusive details that were previously restricted to racing – some making a first appearance on a production motorcycle.

Examples include the self-supporting and aerodynamically optimized fairings made completely of CFK; the gear shift ‘assistant’; a dashboard like that used in MotoGP; forged aluminium wheels and racing brakes with radially-bolted calipers. Wherever the eye looks, it sees pure racing technology. It is unmistakably dynamic and agile – a machine that will inspire on country roads and race circuits.

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BMW Motorrad deliberately decided to further develop the historic boxer engine for road racers with racing circuit intent. The key engine data is extremely good, for example, the engine achieves more than 96kW / 128bhp at 8750 min–1 – more than the significantly modified engine of the BMW R-1200 S. The maximum torque of 115 Nm is achieved at 6,000 min–1, while the highest engine revs reach a peak value at 9,500 min–1.

Technically, the BMW HP2 Sport is based on the BMW R 1200 S. Although customised to meet the requirements of the ambitious sports rider down to the last detail, the BMW HP2 Sport is a completely independent and exceptional motorcycle. Many detailed solutions are based on the experiences gained in long-distance races.

The most striking difference of the BMW HP2 Sport (compared with the endurance racing boxer) is the all-new cylinder heads: Each of the double overhead camshafts (DOHC) uses a drag lever to actuate the valves that are larger those on the BMW R 1200 S. Further modifications such as the flow-optimised intake and outlet, new forged pistons and adapted connecting rod help the engine to achieve the necessary higher output.

The striking design of the rear silencer is impressive and the new stainless steel exhaust system is placed below the engine for the first time. This keeps the construction of the lower area of the motorcycle to be kept extremely slim, enabling greater freedom of movement for riding techniques such as ‘knee-down’ cornering.
The inimitable boxer sound has a new acoustic quality and is generated by the exhaust system. In addition, the fitting of a CFK engine spoiler also provides aerodynamic advantages.

Another exclusive racing feature is the gearshift assistant. Together with the close ratios of the 5-speed gearbox it enables fast gear shifts without having to ease off the throttle and operate the clutch. This technology is offered for the first time in a series motorcycle. In order to adapt the gearshift pattern for the racing, a suitable replacement pressure sensor is available as special equipment (if required).
The fully adjustable Öhlins sports chassis also has a Brembo monoblock brake system with radially-mounted, four-piston fixed calipers at the front.

Optimum ergonomics are ensured by the adjustable forged aluminium footrests, adjustable stock handlebar and the Magura radial manual buttons.

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The instrument console is directly from MotoGP and provides the rider with important information such as lap times, other racing data and the usual displays.

Consistent attention was paid to the light¬¬weight construction of all components. This included the self-supporting front fairing, the self-supporting carbon rear, the weight-optimised forged wheels, and such hidden details as the lightweight generator. It was therefore possible to reduce the unladen weight of the HP2 Sport to DIN standard with a full tank (90%) to 199 kilos. The dry weight is only 178 kilos.

The interplay of variable ergonomic design, increased engine output, and the favorable centre of gravity of the boxer engine guarantees superb handling and racing potential.

Even if racing is clearly at the forefront of the BMW HP2 Sport, it does not forego the safety design feature of ABS. The sophisticated anti-blocking system specially adapted to the HP2 Sport is available as an option and is configured so that it can be switched off for the racetrack.

Technical data - BMW HP2 Sport

Engine:

  • Capacity cm3 1,170
  • Bore/stroke mm 101/73
  • Max output kW/bhp >96/128
  • at max torque min–1 8,750
  • Torque Nm 115
  • At max revs min–1 6,000
  • Configuration Boxer
  • No of cylinders 2
  • Compression ratio/fuel grade 12.5/S Plus
  • Valves/gas cycle DOHC (double overhead camshaft) with drag lever
  • Valves per cylinder 4
  • Ø Intake/outlet mm 39/33
  • Throttle butterfly dia mm 52
  • Fuel supply management BMS-K

Electrical System:

  • Alternator W 480
  • Battery V/Ah 12/12, maintenance-free
  • Headlight W 2 x H 7/55
  • Starter kW 1.2

Power Transmission/Gearbox:

  • Clutch Single-disc dry clutch Ø 180 mm
  • Gearbox Constant mesh 6-speed transmission
  • Primary transmission 1.734
  • Gear ratios I 2.176, II; 1.625, III; 1.296, IV; 1.065, V; 0.939, VI; 0.848
  • Rear wheel drive Cardan shaft
  • Final drive 2.75

Chassis:

  • Frame Main frame and front frame made of steel tube, rear frame and front fairing self-supporting CFK, self-supporting power unit
  • Suspension, front BMW Telelever
  • Suspension, rear BMW Paralever
  • Spring travel, front/rear mm 105/120
  • Castor mm 86
  • Wheelbase mm 1,487
  • Steering head angle ° 66
  • Brakes front Double disc brake Ø 320 mm
  • rear Single disc brake Ø 265 mm
  • BMW Motorrad ABS on request
  • Wheels Light metal forged wheel
  • front 3.50 x 17
  • rear 6.00 x 17
  • Tyres front 120/70 ZR 17
  • rear 190/55 ZR 17

Dimensions and Weight:

  • Length, overall mm 2,135
  • Width, overall mm 750 on slip pad
  • Handlebar width mm 700
  • Seat height mm 830
  • Weight, dry kg 178
  • Unladen weight to DIN standard with full tank kg 199
  • Max permissible weight kg 330
  • Tank capacity/reserve l 16/4

Performance Data:

  • Acceleration - 0–100 km/h s <3.1
  • Top speed km/h >200

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