2007 Yamaha FZ6, Check out this FZ6 with two bros exhaust, shorty adjustable levers and much more! Call Scott today for more info! - MIDDLEWEIGHT SWISS ARMY KNIFE. The versatile middleweight with fuel-injected R6 power and light, strong aluminum frame gets new swingarm, four-piston brake caliper, fairing, seat, revised injection mapping and even more style for 2007.