Kawasaki ZX6R 2013-2017 Mupo Fork Cartridge Kit K911 30mm Pistons NewREF#C06KAW041 This new cartridge has been developed thanks to the experience acquired during the races supported by us. The two main technical features are the piston diameter and the K911 system. The 30 mm piston can guarantee an excellent progressive rebound for having an infinite setting possibilities. This characteristic can satisfy any use of bikers. The K911 is a new mechanic system that allows varying the spring elastic constant in the fork