The six-speed transmission has been refined and no longer has the disconcerting clunk that previously haunted shifts between first and second gears. In equal measure, the new gearbox allows the rider to find neutral with ease, something the previous year’s models had difficulty with.
The 2006 Kawasaki Ninja ZX-6R 636 comes standard with an impressive race-inspired slipper clutch. This back-torque limiting unit allows aggressive downshifts by automatically synchronizing rear wheel speed to engine rpm for smooth, progressive shifts while reducing the possibility of rear wheel hop or lockup. Again, this is a huge boon for both track day novices and experts.