From our 2011 middleweight comparison test, here are quarter-mile and roll-on performance numbers for the contenders: 2011 Honda CBR600RR, Kawasaki ZX-6R, Suzuki GSX-R600, Triumph Daytona 675R and Yamaha YZF-R6. Check out these action images from the track test at the Streets of Willow, and look for the full comparison test in the August issue of the magazine, which goes on sale next week.