2011 Kawasaki Ninja ZX-6R, 2011 Kawasaki Ninja ZX-6R - Pound for Pound, the Mightiest Middleweight Sportbike in History Technological tour de force. That’s the only way to describe the original Ninja 600 sportbike of 1985. Packing a liquid-cooled 16-valve inline-four (the first ever in a middleweight streetbike), wraparound twin-spar frame, anti-dive fork and aesthetics snatched right from the Grand Prix circuit, the original ZX600-A1 was a dominant, bigger-than-life middleweight. Apparently, some things never change. 3-Day "no Questions Asked" Money Back Guarantee on all Certified used motorcycles purchased! Click here to learn more! TO GET INTERNET PRICING CALL US 409-938-4820 Trades Welcome! Email us with your Trade. Financing offered. All Credit Applications Accepted. Extended warranty available on most models. Please call 409-938-4820 for information. All Certified used motorcycles come with a limited powertrain warranty. Click here to learn more!