BMW HP2 Sport

The BMW HP2 Sport is a boxer-engined sports motorcycle produced by BMW Motorrad from 2008 to 2012. It is the successor to the BMW R1200S.

BMW HP2 Sport
ManufacturerBMW Motorrad
Production2008 - 2012
PredecessorR1200S
SuccessorHP4
Engine1170 cc flat twin
Bore / stroke101 mm × 73 mm (4.0 in × 2.9 in)
Compression ratio12.5:1
Power95 kW (128 hp) @ 7,525 rpm[1]
Torque110 N⋅m (80 lb⋅ft) @ 6,710 rpm[1]
Ignition typeDigital CDI
TransmissionSingle-plate dry clutch, 6-speed, shaft drive[2]
Frame typeTubular steel Trellis with carbon-fibre rear subframe
SuspensionÖhlins, Front: BMW Telelever
Rear: BMW Paralever
DimensionsL: 2,151 mm (84.7 in)
H: 1,177 mm (46.3 in)
Weight399 lb (181 kg) (claimed)[2] (dry)
488 lb (221 kg)[1] (wet)
Fuel capacity16 l; 3.5 imp gal (4.2 US gal)

Design

The engine is a 1,170 cc flat-twin "oilhead" with air-cooled cylinders and oil-cooled heads. Derived from the pushrod-engined BMW R1200RS, the dohc eight-valve fuel-injected engine is tuned for a maximum output of 128 horsepower (95 kW) at 8,400rpm. The HP2's engine was the most powerful "oilhead" motor[3] before BMW introduced liquid cooling for some of its flat twins in 2013.

At 178 kg (dry) and 128 hp, the HP2 Sport is even lighter and more powerful than the R1200S on which it is based.[4] Its frame is tubular steel, like that of the R1200S, but the latter's tubular rear subframe is discarded in favour of a lightweight self-supporting carbon fibre semi-monococque seat unit.

The HP2 Sport is fitted as standard with a quick shifter, Öhlins suspension and many carbon fibre body parts. Front brake calipers are Brembo "race-spec" Monobloc, wheels are lightweight forged aluminium, and original equipment tyres are Metzeler race compound items.[5]

Reception

The HP2 Sport was very well received. Motor Cycle News declared it to be BMW's "finest sporting package ", adding, "it is a lot of bike with a serious amount of performance goodies ... Not only does it make a brilliant road-going bike, the BMW HP2 will cut up rough at track days."[6]

BMW HP2 range

BMW produced two other very different HP2 machines, the HP2 Megamoto of 2007-2010,[7] and the HP2 off-road machine of 2005-2008,[8] neither of which were as well received as the HP2 Sport.

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gollark: You can't prove that that corresponds to reality, that's the thing.
gollark: Wikipedia, source of all knowledge, says that "On 4 July 2012, the discovery of a new particle with a mass between 125 and 127 GeV/c2 was announced; physicists suspected that it was the Higgs boson.[21][22][23] Since then, the particle has been shown to behave, interact, and decay in many of the ways predicted for Higgs particles by the Standard Model, as well as having even parity and zero spin,[6][7] two fundamental attributes of a Higgs boson."
gollark: You can prove that that follows from axioms, yes, I forgot that.
gollark: You can just say that your theory is consistent with current information.

References
  1. Conner, Blake. "BMW R1200S." Cycle World December 2006: 58+. General OneFile. 10 May 2015.
  2. Cathcart, Alan. "Uber-boxer: riding BMW's first works racer in 50 years." Motorcyclist March 2008: 80+. General OneFile. 10 May 2015.
  3. "BMW HP2 Sport (2008-2012) Review", Motor Cycle News, 20 December 2007
  4. "BMW HP2 Sport (2008-2012) Review", Motor Cycle News, 20 December 2007
  5. http://www.topspeed.com/motorcycles/motorcycle-reviews/bmw/2012-bmw-hp2-sport-ar126981.html
  6. http://www.motorcyclenews.com/bike-reviews/bmw/hp2-sport/2008/
  7. http://www.motorcyclenews.com/bike-reviews/bmw/hp2/2007/
  8. http://www.motorcyclenews.com/bike-reviews/bmw/hp2/2005/
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