With the BMW HP4, BMW
Motorrad presents the lightest 4-cylinder supersports bike in the 1000cc class
to date. Based on the BMW S 1000 RR - or RR for short - the new sports
motorcycle has an output of 142 kW (193 hp) and weighs just 199 kilos
including Race ABS and with a 90% full fuel tank (169 kg dry weight with Race
ABS).
The new BMW HP4
sees its world premiere in 2012 and is a continuation of BMW Motorrad's HP
model series founded in 2005. After the boxer models HP2 Enduro,
HP2 Megamoto and HP2 Sport, the BMW HP4 is the first 4-cylinder
motorcycle in the HP family.
The HP label stands
for high performance, and the HP4 once again embodies outstanding agility,
power and riding dynamics. But it also reflects the use of extremely
high-quality materials and intelligent technology, carefully conceived down to
the last detail. In short, the HP4 stands for perfectly controllable power and
sporty perfection.
BMW High Performance
motorcycles are truly outstanding: exclusive and authentic, they will always
remain relatively rare. This applies equally to the new BMW HP4. Each
motorcycle is issued with its own HP4 serial number which is engraved indelibly
in the upper fork bridge.
A genuine highlight:
due to its extensive range of fittings and excellent set-up, the new HP4 is
immediately ready for use on the race track ex works, requiring no elaborate
modifications. But at the same time it offers great potential for dynamic
riding on country roads. Still, the HP4 is entirely uncompromising, combining
athletic flair and riding dynamics at the very highest level - to an even
greater extent than the S 1000 RR.
The new HP4 -
exclusive performance based on the S 1000 RR.
Since its
international press presentation in autumn 2009, the S 1000 RR has
sped from one triumph to the next - and not just in motorcycle magazine
comparative tests. This is clear evidence of the qualities and the consistency
of the supersports concept. Fitted with Race ABS and Dynamic Traction Control
(DTC), the RR set a new benchmark in this hotly competed and technologically
highly sophisticated segment. But even the S 1000 RR left some room for
improvement.
Technical innovations
for enhanced sports performance.
The HP4 provides the
homologation basis for the use of BMW motorcycles in motorcycle racing,
especially in the superbike and superstock category. The new model features
numerous technological innovations which highlight its orientation towards
racing and the race track. The standard passenger seat cover ensures the
monoposto look so characteristic of the race track. But for riders who would
like to travel with a passenger, BMW Motorrad also offers a passenger package
as an ex works option. In addition to the passenger seat this includes the
passenger footrest system.
Dynamic Damping
Control DDC - a world first in serial motorcycles construction.
The new HP4 reflects
its status as a high-performance motorcycle in terms of its suspension system
with a world first for serial production motorcycles: it is fitted as standard
with Dynamic Damping Control DDC. This system allows dynamic damping adaptation
of the upside-down fork and spring strut to the specific situation on the road.
The damping is adapted to the current manoeuvre or road surface by means of
sensor-supplied parameters via electrically controlled regulation valves. In
this way, the HP4 offers optimum damping in every situation, handling long and
short shocks virtually perfectly so as to provide maximum traction and safety.
Higher performance
brake system and Race ABS with IDM setting for maximum brake performance.
With the introduction
of Race ABS in the S 1000 RR, BMW Motorrad underscored its pioneering
role in the area of ABS. For the first time ever, an antilock brake system was
consistently tailored to sporty needs.
With the new
race-oriented HP4, BMW Motorrad now takes the next step in this area. In
keeping with the HP4 use profile of race track and dynamic country road riding,
the new bike not only has Brembo monoblock brake calipers and 9x floating brake
discs at the front but also a further developed and refined Race ABS.
As before, this ABS
has four different modes for wet surfaces ("Rain"), roads
("Sport"), race track with supersports tyres ("Race") and
race track with slicks ("Slick"). Racing experience gained from the
IDM (International German Motorcycle Championship) has been fed directly into
the Race ABS fitted in the HP4. In "Slick" mode, the so-called IDM
setting with refined regulation impulses now gives the skilled rider the option
of maximum possible deceleration.
New 200/55 ZR 17
tyres on the rear wheel and finely adjustable Dynamic Traction Control in
"Slick" mode.
The HP4 uses a rear
tyre in the new format 200/55 ZR 17. The Dynamic Traction Control DTC
already used in the RR has been optimized for supersports use in the HP4: now
the effect of traction control can be adapted in "Slick" mode to
changing conditions and the rider's individual preference while on the move.
Launch Control for
perfect starts and shift assistant for optimum gearshifts.
The HP4 is the first
BMW motorcycle to have a so-called Launch Control function which provides
active support for the rider in "Slick" mode to achieve maximum
acceleration from standing - for example on race starts. Launch Control limits
engine torque so as to provide the maximum torque transferable from the rear
wheel whenever the front wheel is under no throttle. This means the rider has
to focus less on the throttle because he is controlling acceleration solely
using the clutch. In addition, when Launch Control is activated engine torque
is reduced as soon as the system detects front wheel lift. This prevents
unwanted wheelies when accelerating.
The HP4 allows the
rider to make instant gearshifts with virtually no interruption of tractive
force by means of the shift assistant, fitted as standard. This helps gain
valuable fractions of a second on the race track, too.
Weight reduction due
to forged wheels, lighter sprocket carrier, titanium exhaust system and lighter
battery.
New finely wrought
7-spoke wheels in forged light alloy and a new, lighter sprocket carrier give
the HP4 a weight reduction of 2.4 kg as compared to the RR.
The exhaust system is
made entirely of titanium and saves as much as 4.5 kilograms as compared to the
RR, thereby contributing to the HP4's enhanced handling qualities. The new
exhaust system has an interference pipe between cylinders two and three, a
controlled acoustic valve and a closed-loop catalytic converter. It has been
possible to optimise the torque curve thanks to the new exhaust system, with
the engine application adapted accordingly.
Sharpened engine
set-up and more torque in the mid-range.
The new HP4 is fitted
with the water-cooled 4-cylinder in-line engine of the S 1000 RR with
a peak output of 142 kW (193 hp) at 13,000 rpm and a maximum
engine speed of 14,200 rpm. As in the RR, its maximum torque of
112 Nm goes on stream at 9,750 rpm. The torque has been perceptibly
increased in the 6,000 rpm to 9,750 rpm range. In "Rain" mode
there is now a smoother output and torque curve available between 2,500 rpm and
8,000 rpm.
Unlike the RR, the
4-cylinder in-line engine in the HP4 provides the full output of 142 kW (193
bhp) at 13,000 rpm in all modes - "Rain", "Sport",
"Race" and "Slick" - with an identical throttle curve and
thus the same response, making it perfect for use on the race track.
Supersports fittings
for sporty riders.
The HP4 has numerous
special features to meet the needs of sports and racing riders. For example,
the instrument cluster not only has a newly designed dial face with HP4
inscription but also provides an extended range of information and
functions. The information display now shows the DDC set-up menus as well
as the figures for DTC fine adjustment and Launch Control activation.
In visual terms, too,
the new HP4 is consistently in line with supersports aspirations for the race
track and for dynamic country road riding. In addition to the monoposto look
there is a dual-section engine spoiler - elongated as compared to the RR - and
a tinted windshield, both of which highlight the increased dynamic performance
of the HP4. The small, light LED turn indicators are discreetly integrated and
the laser-engraved HP4 logo with serial number on the upper fork bridge
underscores the bike's exclusive character. An elaborate multiple colour paint
finish in Racing blue metallic/Light white creates an appropriate
racing-oriented appearance.
HP4 with Competition
Package – top-level exclusive flair due to use of the very finest materials.
For anyone who wants
even more than the functional sophistication and extreme riding dynamics of the
HP4, the HP4 with Competition Package is an especially exclusive version of the
motorcycle. Refined HP carbon parts including a long, closed HP engine spoiler
in carbon, an adjustable HP rider footrest system, folding HP brake and clutch
levers, wheels finished in Racing blue metallic and a sponsor sticker kit
provide additional enhancement of the new HP4.
A summary of the HP4
technical highlights:
Fork bridge with
engraved number and HP4 logo.
Lightest 1000
supersports bike with four cylinders: 199 kg
(90% DIN unladen weight).
(90% DIN unladen weight).
Innovative suspension
with Dynamic Damping Control DDC.
Race ABS with IDM
setting.
Dynamic Traction
Control DTC with fine adjustment in "Slick" mode.
Launch Control.
Adapted wheelie
detection.
New rear wheel tyres,
200/55 ZR 17.
Shift assistant as
standard.
Light titanium
exhaust system with controlled acoustic valve and interference pipe.
Forged light alloy
wheels, anodised in black.
Radial monoblock
brake calipers by Brembo with special brake pads.
9x floating brake
discs at front.
Extended,
dual-section engine spoiler.
Seat in monoposto
look with passenger seat cover.
LED turn indicators.
Tinted windshield.
Lighter 7 Ah battery.
Performance-oriented
engine set-up.
Increased torque in
the medium engine speed range.
HP4 with Competition
Package:
Long, closed engine
spoiler made of carbon.
Sponsor sticker kit
included.
Wheels in Racing blue
metallic.
HP Carbon badge
carrier.
HP Carbon tank cover.
HP brake lever,
hinged.
HP clutch lever,
hinged.
HP rider footrest
system, adjustable.
Source: BMW Press
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