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.