BMW's motorcycle division hasn't enjoyed the worldwide performance reputation of its automotive sector, but that all changes with the incredible S1000RR, introduced to journalists last week at the equally impressive Portimao race circuit.
BMW Motorrad hits the literbike market hard with its race replica, as the S1000 employs class-leading power, a stout chassis beyond reproach, and a techie electronics package second to none. This bike is the real deal.
We've been teased with details of the bike for well over a year. Our first glimpse came in April of 2008 when I wrote theS1000RR Preview, and then we brought new insight last December in our Closer Look article. Then we finally got to see the bike in the flesh at its U.S. introduction where Pete elaborated on the RR's features and specs.
After all of that, we were already quite up to speed on what the bike consists of. Now all we needed to know is how it performs.
The new S1000RR fires a potent salvo into the literbike market, and it's set to blow away perceptions of what a BMW motorcycle is.
Morning at Portimao
Rolling into the Autodromo Internacional do Algarve in Portimao, Portugal, its extreme elevation changes promise an entertaining day, even if we weren't to ride one of the most anticipated sportbikes to come along in years. .
The S1000RR in BMW's Motorsports color scheme.
The base S1000RR retails in America for $13,800, but the bikes we'd be riding were equipped with BMW's optional electronic rider aids. As with 98% of S1000RR pre-orders, our bikes had the $1,480 traction control and Race ABS option, plus the $450 Gearshift Assistant that allows full-throttle upshifts without backing off the throttle or using the clutch. The only thing missing from a fully optioned RR is the white, red and blue BMW Motorsport color, a $750 option that has been selected in about 50% of pre-orders thus far. The test bikes were flavored in a unique Acid Green Metallic, but other color choices include a classy Mineral Silver Metallic or a sinister Thunder Grey (black) Metallic
Advanced technology features heavily on the S1000RR. Base models include electronics that influence power and throttle response over four possible modes: Rain, Sport, Race and Slick. It's simple to select while stationary, but they can be changed even while riding. A press of the nicely damped right-side switchgear selects the desired mode, then you have 60 seconds in which to close the throttle and pull in the clutch which triggers the new mode you've chosen.
The Dynamic Traction Control/ABS option (either of which can be disabled if desired) adds to the four riding modes a few other rider aids, including varying ABS settings and a form of wheelie control. Wheel-speed sensors supply info for the ABS and traction control, and a gyro mounted under the seat provides additional data to the bike's ECU to influence throttle response and to provide a measure of wheelie control.
With more computers than the Starship Enterprise, the S1000RR can nearly ride itself.
Instrumentation is robust. An analog tach features prominently, with LCD displays for speed, an easily read gear indicator, and an adjustable (for both brightness and frequency) shift light. Lap times can be logged by engaging the high-beam flash trigger or by a trackside beacon and can display last lap time, best lap, number of laps, accelerator position in percentage per lap, time per lap the brakes were applied, minimum and maximum speeds and the number of gearshifts. Whew!
Session One – Rain Mode
A centrally located ram-air duct provides pressurized cold air through the steering head into the airbox.
A stainless steel four-into-two-into-one exhaust system keeps its weight low and centralized. Three exhaust valves enhance its power production and sound.
As we were learning a new bike and a new track, we were advised to begin with the ECU set to the Rain mode. This smooths throttle response and limits engine output to a maximum of 150 horsepower. And with the DTC/ABS option, it also restricts throttle application at lean angles greater than 38 degrees; making it ideal when riding on low-adhesion surfaces.
However, on a dry and grippy racetrack like Portimao, the system proved way too intrusive. Especially off-putting was the ghost in the machine that prevented application of throttle when at a corner's apex while the bank-angle sensor was beyond the 38-degree threshold. Then, once at 37 or fewer degrees, power comes on suddenly and gives the pilot the feeling that he's not fully in control.
Still, there was much to appreciate from this restricted first session. BMW's RR feels as nimble as a Honda CBR1000RR, the most agile of existing literbikes, and it continues steering well even while trail-braking. It feels lighter than its fully fueled 450-pound weight would indicate. Ergonomics feel racy but not brutal, with pegs set back quite far.
Although the engine is detuned in Rain mode, there is still plenty of power on tap. BMW's RR has the largest bore (and, correspondingly, shortest stroke) of its competition, and this usually hinders low-end and midrange power. BMW fills in those low-rev holes with technologies that alter the flow of air in and out of the engine.
On the intake side are variable-length throttle trumpets, using a longer, torque-enhancing configuration at lower revs before splitting apart to reveal a short intake runner for maximum power at high rpm. Spent gasses are at the mercy of three exhaust valves. A butterfly valve bridges the header tubes of cylinders 1 and 4, and a second butterfly joins cylinders 2 and 3. A third exhaust valve located ahead of the tailpipe is described by BMW as an “acoustic flap,” which is in place only to limit sound emissions at lower revs.
Session Two – Sport Mode
It only took a few corners to realize the Sport setting is much preferable in dry, high-traction settings than the Rain mode. Throttle response is still smooth and the bank-angle sensor is still in play, but in Sport mode it only limits throttle openings at lean angles beyond 45 degrees. Within these parameters, a rider is still able to cut fairly quick laps
Without the Rain setting's restriction of power output, the S1000RR is able to unleash its full 193 claimed crankshaft horsepower, although throttle application is more progressive than the Race or Slick settings. Full-throttle acceleration is something near ferocious, and I'd estimate a rear-wheel horsepower number near 170, which would make the S1000RR the most powerful literbike available.
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