2010 BMW R1200GS: DOHC, 110bhp, 88lb/ft

Galleries -

By

Like we told you in September, the 2010 BMW R1200GS borrows the DOHC engine with four valves per cylinder from the HP2 Sport to deliver more power, more torque and higher revs. Power and torque from the 1,170cc boxer-twin are up five percent to 110bhp at 7,750rpm and 88lb/ft at 6,000rpm, while the redline rises from 8,000 to 8,500rpm. There’s also a new electronic exhaust flap designed to improve the engine’s sound. Unlike the HP2 Sport, the GS retains its two spark plugs per cylinder arrangement. The engine prefers fuel with a 95-98 RON rating, but optional equipment can enable it to run on 91 RON with slightly reduced performance. Visually, the new model is virtually identical to the previous generation, with the two valve cover bolts being the easiest way to distinguish new from old (the previous model had four bolts on each cover). The press release follows.
>

Woodcliff Lake, NJ – November 5, 2009…With the
introduction of the new BMW R 1200 GS, BMW Motorrad is writing yet
another chapter in the story of its highly successful GS models which,
for almost three decades, have been the epitome of the large-capacity
grand touring enduro.

Building upon the former generation of the R 1200 GS, which already
offered supreme power and performance as well as a broad range of
practical riding qualities for long tours combined with supreme
pleasure on winding country and mountain roads, BMW Motorrad is now
enhancing this standard to an even higher level.  A more powerful
engine with extra torque, results in even greater driving dynamics
both onroad and offroad.

The main features of the 2010 BMW R 1200 GS at a glance:

* New, even more dynamic engine now with two overhead camshafts per
cylinder and valves in radial arrangement.
* Increase in engine
output by 5 per cent to 110 hp at 7,750 rpm and maximum torque to 88
lb-ft at 6,000 rpm.
* Increase in maximum engine speed from 8,000
to 8,500 rpm offers a wider range of useful engine speed.
*
Significantly better acceleration and torque.
* Electronically
controlled exhaust flap for an aggressive muscular sound.
* Color
variants of the R 1200 GS: Alpine White non-metallic, Magma Red
non-metallic, Ostra Greymatt metallic, Sapphire Black metallic.
*
Optional extras and accessories tailored to the model with BMW’s
usual high level of quality.
* New additional headlight in LED
technology for the R 1200 GS (accessory).

In its construction principle and fundamental layout, the new
flat-twin engine is the same as the Double Overhead Camshaft (DOHC)
engine on the BMW HP2 Sport.  In its latest generation, the
engine has been carefully updated and optimized for the R 1200 GS,
tailored to the specific requirements of a grand touring enduro.

With the 1,170-cc Boxer engine on the former model already ensuring
supreme power under all conditions and in all situations, the new R
1200 GS has even more to offer in virtually every respect. Delivering
maximum output of 110 hp, increasing top engine speed  by 500 to
8,500 rpm, and with an even broader range of engine speed, the new R
1200 GS is even more dynamic, powerful and muscular in terms of both
torque and acceleration throughout the entire speed range — setting
the standard once again for the grand touring enduro in terms of
riding dynamics.

New DOHC cylinder heads for even more efficient cylinder charge

Designed and built at the outset for higher engine speed, the new
flat-twin engine in the R 1200 GS, like the engine featured in the BMW
HP2 Sport, comes with two overhead, chain-driven camshafts per
cylinder. The valves are operated by very light rocker arms able to
withstand high engine speeds due to their low weight alone. 
Radial arrangement of the four valves is accomplished by the compact
combustion chambers.  Like on the former model, the fuel/air
mixture is ignited by two spark plugs (HP2 Sport: one spark plug),
while the compression ratio remains at 12.0:1.

Thanks to efficient knock control, the R 1200 GS is able to run on
premium (plus) fuel with an octane rating of 95-98 RON (maximum output
is measured at 98 RON). Under certain conditions, there may be a very
small loss of torque and a slight increase in fuel consumption as soon
as knock control cuts in. On long tours where the rider might be
required to use inferior fuel, the engine may also run on 91 RON
regular fuel, using specific running data available as special
equipment free of charge from the factory.

Horizontal arrangement of the camshafts in the direction of travel
gives the new flat-twin engine two particular technical
features:  Each camshaft controls one intake and exhaust valve
and, due to the radial arrangement of the valves, the cams come with a
conical profile. To increase both output and torque, fuel volume has
been increased throughout the entire speed range by increasing valve
plate diameter over the former models from 1.42-1.54 inches on
the intake side and 1.22-1.30 inches on the exhaust side.

Intake and exhaust timing on the two camshafts has been optimized in
particular for supreme power at low and medium engine speeds and for
even faster, free-revving engine performance throughout the entire
range. To increase the free valve cross-section, valve lift is up by
0.415 inches on the intake and 0.365 inches on the exhaust side to
0.425 inches on both sides. Valve clearance is compensated by light
semi-hemispherical shims.

More power and extra torque throughout the entire speed range

The existing ratio of bore and stroke of 3.98 : 2.87 inches remains
unchanged from the former model, as does the engine’s cubic
capacity of 1,170 cc. Other features likewise carried over from the
previous engine are the crankshafts and connecting rods as well as
their mounts and bearings, while the two new cast-aluminum pistons
have been re-designed to match the change in combustion chamber geometry.

Interacting with the upgraded intake system, now featuring black
instead of silver throttle butterfly manifolds as on the former model,
measuring 1.97 inches instead of formerly 1.85 inches (HP2 Sport: 52
mm/2.05″) opening clearance and with newly designed intake air
manifolds and an air filter element with higher volume capability, the
engine now develops maximum output of 110 hp at 7,750 rpm and peak
torque of 88 lb-ft at 6,000 rpm.  An oil cooler ensures stable
engine temperatures even when riding to the extreme.

In all, the modifications to the drivetrain provide a significantly
more homogeneous flow of power and torque throughout the entire speed
range.  In this process of technical development, the engine now
features magnesium-colored cylinder head covers with two instead of
the former four fastening bolts and come in new, even more dynamic
design. A valve cover guard made of aluminum or plastic as well as a
chrome-plated aluminum cylinder head cover are available as accessory items.

Electronically controlled exhaust flap for even more muscular sound

The exhaust system features two manifolds with the same design,
length and diameter as the previous model, while a modified
interference pipe regulates the change in vibration conditions in the
exhaust system.  Featuring an exhaust flap controlled by an
electric motor as well as opening and closing cables, the 2010 BMW R
1200 GS provides a particularly throaty boxer sound naturally in full
compliance with legal standards.  To reduce ram pressure and
improve the sound of the engine even further, the rear silencer
remains the same in design as on the former model and comes with a
completely new interior structure.

Ideal transmission of power through six-speed gearbox and
drive shaft

Power is transmitted as before by the proven six-speed gearbox with
larger bearing diameters and a modified distance between the
individual shafts previously changed for the 2008 model year. In the
process, the gear ratios were once again changed and the final drive
has been modified from 2.82 to 2.91.

In conjunction with the new, even more powerful engine, there is
significantly more torque throughout the entire range of engine speed.
The new R 1200 GS also benefits from improved shifting with a
power/travel curve for precise gearshift and clear feedback at all times.

The maintenance-free drive shaft to the rear wheel also remains
unchanged, relieving the rider of annoying and time-consuming
maintenance requirements, particularly on long tours.

Proven Suspension and high-performance brakes with Integral ABS

Like its predecessor, the new R 1200 GS offers an almost perfect
synthesis of offroad and onroad riding qualities. As in the past, the
stiff and torsionally-resistant suspension, front wheel control with
the unique BMW Telelever, and the rear wheel incorporating the BMW
Paralever provide first-class and improved riding qualities in
combination with the new engine offering even more power and torque.

In conjunction with optional BMW Motorrad Integral ABS, extremely
powerful brakes provide maximum safety even in critical situations.
Optimum environmental compatibility is achieved on the new boxer
engine through the most advanced exhaust gas management with a fully
controlled three-way catalytic converter.

Enduro ESA – Optional for optimum electronic adjustment
of the suspension

Designed and built for the specific requirements of a grand touring
enduro, Enduro ESA Electronic Suspension Adjustment is available on
the latest version of the R 1200 GS as an optional extra straight from
the factory.  Enduro ESA allows adjustment of the suspension
under all kinds of riding conditions and with virtually any load
level, simply by pressing a button.  An important feature of the
Enduro ESA is that it offers both an onroad and offroad mode within
which the rider, choosing specific settings for the spring base and
damping, is able to adjust the suspension even more precisely to
specific needs and requirements.

As usual, Enduro ESA meets the particular requirements of a grand
touring enduro by additional electrohydraulic adjustment of the spring
base on the front spring strut.  When riding offroad, this
ensures a far smoother ride without the disadvantages otherwise
experienced onroad, such as shorter negative spring travel or greater
seat height.

Optimum ergonomics and even more practical features

The high-quality, sophisticated handlebar, constructed from a
heat-treated aluminum tube, mounted with two asymmetrical clamps,
facilitates turning by up to 180 degrees (as on the HP2 Enduro Sport)
and may be adjusted in two ergonomically different positions. 
While the rear handlebar position for riding onroad and in less
demanding terrain ensures optimum ergonomics particularly for the
shorter rider, the front handlebar position offers advantages when
standing up on the machine in rough terrain.

The hand protectors available as an accessory for the R 1200 GS are
installed as standard equipment straight from the factory on the R
1200 GS Adventure. In the process of technically upgrading the
successful R 1200 GS models, the instrument cluster has received a
newly designed dial.  And last but not least, the windshield now
comes with larger hand-bolts with even better grip for adjusting its
position with greater ease.

Options and accessories tailored to both the rider and the machine

As a genuine, fully-fledged systems supplier, BMW Motorrad has
developed a wide range of options and accessories for further
customization of the new R 1200 GS.  One particularly important
new feature is the additional headlight in LED technology.

Options come directly from the factory and are installed during
production at the Berlin Plant.  Accessories are installed by
Authorized BMW Motorcycle Dealers.

Options

* Enduro ESA
* BMW Motorrad Integral ABS (semi-integral,
on-demand)
* RDC
* ASC
* Exhaust system
chrome-plated
* Heated HandGrips.
* Hand protectors
*
Case brackets
* Cross-spoke wheels
* On-board computer
with oil level warning
* Low rider’s seat
* Lowered
suspension
* Anti-theft warning system with remote
control
* LED direction indicators
* Power reduced to 98
hp
* 91 RON

Accessories

Cases:

* Vario case
* Case holder
* Vario Topcase
* Topcase
fastening elements replacing passenger seat
* Topcase
support
* Inner bags for Vario case/Topcase
* Back padding
for Vario case/Topcase
* Watertight tank bag
* Softbag 2,
large, 13.5 gallons
* Softbag 2, small, 5 gallons

Styling and Appearance

* Cylinder head covers chrome-plated
* Fender, front, in
carbon
* Splashguard, rear, in carbon
* HP Carbon cover for
engine housing
* Headlight protector (for offroad use
only)
* Cap for Telelever and fork bridge
* Additional LED
headlight
* Holder for additional headlight
* LED direction indicators.*

Sound

* Akrapovic sports muffler

Ergonomics and Comfort

* Windshield, tinted
* Wide enduro footrests
* Adjustable
footbrake lever
* Handlebar cross reinforcement
* Padding
for handlebar cross reinforcement
* Rider’s seat, low
(32.3″) in Black* or Grey
* Rider’s seat, Grey

* Additional power socket
* Heated HandGrips*

Navigation and Communication

* BMW Motorrad Navigator IV
* Mount for BMW Motorrad
Navigator
* Navigator function bag

Safety

* Hand protectors*
* Spoiler guards, large, for hand
protectors
* Aluminum cylinder head cover protection
*
Plastic cylinder head cover protection
* Engine protection hoop

* Enduro aluminum skid plate protection,
* Frame
guard
* Safety bolts for oil filler manifold
* Anti-theft
warning system with remote control*

Maintenance and Technical Equipment

* Reduction in power to 98 hp*
* Paddock stand
* On-board
toolkit/service kit
* LED light for on-board power socket, 16.1″

*Also available as an optional extra from the factory.

New surface and color design

The new R 1200 GS demonstrates its enhanced dynamics through new
surface design and colors.  Ostra Grey matt metallic gives the R
1200 GS a particularly technical touch.  Sapphire Black metallic,
on the other hand, gives the new R 1200 GS a very masculine look,
while the two non-metallic paintwork options in sophisticated Alpine
White and brilliant Magma Red highlight the sporting offroad ambitions
of the new R 1200 GS.


2010 BMW R 1200 GS Specifications

Engine

Capacity         1,170
cc
Bore/stroke      3.98/2.87
inches
Max
output                 
 110 hp at 7,750 rpm
Max torque
         88 ft-lb @ 6,000
rpm
Configuration      Flat-twin

No. of cylinders     2
Compression
ratio/fuel grade  12/S 95-98 RON, max output with 98 RON,
optional 91 RON SA
Valve/gas timing     DOHC

Valves per cylinder     4

Intake/exhaust valve diameter    1.54/1.30
inches
Throttle butterfly diameter   1.97
inches
Fuel supply      BMS-K+

Exhaust management     Fully-controlled
three-way catalytic converter

Electrical System

Alternator (W)     720 W
Battery
(V/Ah)      12/14, maintenance-free

Headlight (W)     H7
Starter (kW)      1.1

Transmission/Gearbox

Clutch       Single-plate dry
clutch, diameter 7 inches
Transmission
     Dog-type six-speed
gearshift
Primary ratio      1.737

Gear ratios      I  
2.375
       II  1.696

       III 1.296

       IV 1.065

       V  0.939

       VI 0.848
Rear-wheel
drive     Drive shaft
Final drive ratio     2.91

Suspension

Frame       Tubular steel frame,
load-bearing engine
Front wheel
control    BMW Telelever
Rear wheel control
    BMW Paralever
Overall spring travel,
front/rear    7.5/7.9 inches
Castor 
     4.0 inches
Wheelbase
     59.3 inches
Steering head angle
     64.3 degrees

Brakes     
Front
     Dual disc brake, diameter 12
inches
Rear      Single disc brake,
diameter 10 inches
Optional     BMW Motorrad
Integral ABS
       (semi-integral,
on-demand)
      
Wheels      

Cast Cross-spoke
       Front
     2.5 x 19

       Rear
     4.0 x 17
Tires
      
      
Front      110/80 R 19

       Rear
     150/70 R 17

Dimensions and Weight

Length       87 inches
Width
(overall, with mirrors)    37 inches
Handlebar
width (without mirrors)  36.6 inches
Seat height  
    33.5/34.3 inches
Dry weight  
    448 lbs
DIN (unladen weight in road trim)
  505 lbs
Max permissible     970
lbs
Tank capacity      5.28 gallons

Performance Data

Acceleration 0-62 mph    3.7 sec
Top
speed       124 +

  • Jim

    “an exhaust flap controlled by an electric motor as well as opening and closing cables”

    That has to be the most asinine feature I’ve ever seen on a motorcycle.

  • Russ

    Yea?!? What an evolution and big step forward.

    Crickets.

    I know we all knew this was coming, but I have to be a little sarcastic.

  • bob

    Um what are you smoking?

    Is that a four valve or two valve head?
    Boxer or parallel twin?.

    • http://hellforleathermagazine.com Wes Siler

      Something pretty good apparently, fixed.

  • General Apathy

    And to those who say the Multistrada 1200 is ugly, Please see above..

    Looks like the MTS1200 will be lighter with 40-50% more power.. This segment could get more interesting the the next few years…

  • chuluun

    Yeah, “an exhaust flap controlled by an electric motor as well as opening and closing cables” is super-dumb. Not sure I’d be too happy spending money on fixing that when it breaks. Looks like an attempted pre-emptive strike at one of the likely reasons for choosing Ducati over BMW. They might has well have put the headline ‘BECAUSE THEIR BIKES SOUND BETTER THAN OURS’ in the press release.

    • DoctorNine

      Now that made me laugh out loud…

  • Standards based

    In Wes’ earlier article on this bike, several BMW owners commented that these dual cam HP2 heads were high maintenance, requiring an expensive rebuild at low milage. And the valves could not be adjusted by the owner. It will be interesting to see if BMW has modified these heads to increase their durability.

  • jconli1

    The HP2 Sport’s maintenance schedule recommends a top end rebuild at 36k miles… otherwise it has the standard maintenance schedule (every 6k miles). For a low prodcution high output track bike, that seems pretty low maintenance to me.

    I’m sure the lower-output, higher-volume (no pun intended) version will skip the scheduled rebuild part entirely.