Suzuki has used Intermot Cologne to reveal its first new bikes for 2011 – the revamped GSX-R600 and 750 supersports. But similarly to the 2009 makeover the Gixxer 1000 received, the new middleweights are more evolution than revolution despite the fact that the designers essentially went back to the drawing board. All-new engines and drivetrains produce the same peak horsepower as this year's model (that's 123hp for the 600 and 148 for the 750) but significant efforts have been made to improve fuel efficiency and reduce power losses between the crank and the rear wheel. The chassis and wheelbase of both bikes have been shortened, both bikes sport Showa's fashionable and fully adjustable Big Piston forks and there's a new and improved, radial Brembo monobloc braking system. The big news is that the Gixxer6 and 750 have gone on a pretty impressive diet, shedding 8 and 9 kilos respectively. It looks like a solid upgrade, if perhaps a little unexciting.