2011 Suzuki Motorcycles at INTERMOT 2010 - First Look

Suzuki officially debuts the GSX-R600, GSX-R750 and GSR750 sport-standard at the Cologne Show.

Photography by Chris Cantle

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2011 Suzuki Motorcycles at INTERMOT 2010 - First Look

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Suzuki has heavily revised its best-selling, middleweight sportbikes: the GSX-R600 and GSX-R750. As in the case of the previous editions, the two are almost perfect brothers, sharing the basic project development of both engine and chassis. The pair has radically evolved over the GSX-R600 and GSX-R750 of 2010. Claimed weights are lighter: minus 19.8 pounds for the GSX-R600, down to 412 pounds; minus 17.6 for the GSX-R750, down to 419 pounds. Both span shorter wheelbases at 54.5 inches for the 600 and 54.7 inches for the 750. This reduction in axle-to-axle measurement was all erased by pulling the whole front end back by 0.6 of an inch. The necessary clearance between the front wheel and the engine was obtained by rotating the revised powerplant 3 degrees to the rear. Swingarm length has remained unchanged, thus the 2011 GSX-R600 and GSX-R750 feature improved forward weight bias (both static and dynamic) and a more comfortable, shorter reach to the slightly reangled clip-ons. The overall weight reduction comes from the frame, swingarm and rear suspension linkage, but many parts were reduced (for the full list and more detail on design changes, see the American Suzuki Dealer Show story.

The lightness continues into the engines, with each piston coming in 78 grams lighter for both applications. Which brings us to the improved efficiency of the two power units. Lighter pistons mean reduced reciprocating mass and its related friction, while and improved engine-management systems contribute to a 10 percent reduction in fuel consumption. Suzuki revised the geometry of the new eight-hole injectors and of the intake and exhaust valves; the latter are set to very narrow included angles (22.5 degrees on the 750 and 22.0 degrees on the 600) to obtain combustion chambers of an extremely compact profile and rather high compression ratios close to 13.0;1. Both units feature highly oversquare bore/stroke measurement (67.0 x 42.5mm for the 600 and 70.0 x 48.7mm for the 750). Surprisingly, Suzuki did not release any power figures. Maybe this was because the company was concentrated on pointing out a really big change in supplier policy! To wit: Italian brakes on a Japanese motorcycle—both bikes get Brembo radial-mount calipers and twin 320mm discs at the front.

The third new Suzuki model to debut at Cologne is a naked sport standard dubbed GSR750. Despite being in the three-quarter-liter category, it has no relation to the supersport-oriented GSX-R750. Starting with the engine, the GSR, in fact, features more oversquare bore (72mm) and stroke (46mm) measurement. Also the chassis is completely different. The GSR750 is a much bigger bike, spanning a wheelbase of 57.1 inches and intended for commuting in style, relaxed back-road sport riding and two-up short-haul touring. Again, no power figure was released, but output should be adequate to face the challenge of the latest Yamaha FZ8 and Kawasaki Z750R, both of which feature a similar layout and style. Only the FZ8 is slated for sale in the U.S.

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