American Suzuki surprised the industry last year by deciding not to import 2010 streetbikes while it tried to clear inventory in a depressed market. But for 2011, it’s rebounding in a big way with the introduction of a comprehensively reworked GSX-R600 and its identical-twin brother, the GSX-R750.
The GSX-R series is integral to Suzuki, so the Gixxer 600 and 750 received a major investment in technology and updates.
“We built our brand from the GSX-Rs,” said Steve Bartolamedi, American Suzuki’s senior communications manager. More than 300,000 Gixxers have been sold over the years, and the GSX-R600 has long been America’s best-selling sportbike.
An all-new frame underpins the GSX-R revisions, trimmed by nearly 3 lbs on its own. This, plus a plethora of other weight-saving items, has resulted in a Gixxer some 20 lbs lighter than previous. An anticipated 410-lb curb weight (full of 4.5 gallons of fuel) would tie the Gix Six with the class lightweight, Honda CBR600RR.
New front-end components are more than 2 lbs lighter and promise improved performance. A 41mm Showa Big Piston Fork weighs less and offers better damping performance than a conventional fork, as we’ve learned from a similar fork on Kawasaki’s ZX-6R. And, in a surprise move, the Gixxer receives radially mounted Brembo monoblock brake calipers, the only Japanese bike we can think of with the respected Italian binders. Smaller front and rear axles and wheel hubs are claimed to reduce weight by a significant 1.3 lbs, and the fully adjustable Showa shock now uses aluminum seats instead of steel for a 90-gram reduction in weight. Although final specifications aren’t yet available, it appears as if the previous bike’s steering geometry numbers are retained. However, the new frame (with sections as thin as 3mm) tightens up the wheelbase by 15mm. A new swingarm is the same length as previous, but it’s now constructed from three melted/gravity-cast sections instead of five high-pressure plate castings.Powertrain The GSX-R’s 599cc mill is architecturally unchanged, retaining the same bore and stroke (67.0 x 42.5mm) as the existing bike and every other 600 supersport. But everything inside has been updated, and the motor has been rotated 3 degrees more upright. It’s also a massive 4.4 lbs lighter. Shorter-skirt pistons have 14% less mass, and the connecting rods are 12% lighter. New cams with reduced overlap are purported to boost low- to mid-range power, and they continue to actuate 16 titanium valves. New vent holes between cylinders reduce mechanical pumping losses. Suzuki Dual Throttle Valve (SDTV) technology carries over, now better directing fuel into the combustion chamber via a steeper angle of the throttle bodies to improve responsiveness. A smaller ECU shaves 330 grams of weight and allowed it to be relocated in front of the airbox. Suzuki Drive Mode Selector (S-DMS) now has just two settings instead of three, and the softer setting now defaults to full power when the throttle is pinned. A considerable 3.75 lbs was pared from the exhaust system’s weight, thanks to thinner-wall header tubing and a smaller under-engine pre-chamber and titanium muffler. Fuel economy is said to be improved by 10%, somewhat offset by the new requirement for premium gas.
We’re told to expect 123 crankshaft horsepower delivered at 13,500 rpm, which should translate into about 108 horses at the rear wheel. This should put it at or near the top of the herd. Torque peaks at 11,500 rpm with 51.3 ft-lb measured at the crankshaft.
The transmission has its internal gearing juggled, now with a slightly taller first gear and closer spacing throughout its six speeds. Suzuki reps allege smoother shifting along with the gearbox being 185 grams lighter.
The GSX-R600 retains the lowest-in-class seat height of 31.8 inches, and its narrower shape allows short legs a direct path to the ground. The clip-on handlebars are now spread out 1 degree extra for better leverage, and a lower tank top allows easier tucking in. Footpegs retain their class-exclusive three-position adjustability and are lighter by 53 grams.
A compact instrument panel is borrowed from the GSX-R1000, now including a lap timer and a four-step adjustable shift light. A large analog tach is augmented by an LCD panel with speed, gear position, clock and dual tripmeters.
The 2011 GSX-R600 seems to have all the ingredients to vault it to the top end of the 600cc sportbike class, and we’re excited to sample it to find out how well its lighter weight and Brembo brakes work early in the New Year.
“It’s hard for me to explain the leap we made with this model,” said Derek Schoeberle, American Suzuki’s field service manager and one of the few people outside Japan to have ridden the new Gixxer. This exciting new GSX-R is scheduled to arrive in dealers in February or March for a list price of $11,599. You’ll have your choice of the familiar Suzuki blue and white or a black-and-silver combo.
2011 Suzuki GSX-R750 The 749cc version of the Gixxer 600 makes an appreciated companion, sharing virtually all the updates its little brother inherited this year. It, too, has lost about 20 lbs, now with a stated curb weight of 416 lbs – that’s just 6 lbs more than the 600. But the best news is that Suzuki has juggled the 750’s MSRP in relation to the 600. Instead of the $1300 difference in 2009, the added cost for the 750cc version is now just $400!
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