FKS511 - OHLINS Kawasaki Z900 Performance / Z900RS / Café Front Fork Cartridge KitFront fork cartridge kit by Ohlins for Kawasaki Z900 Performance Z900RS Z900RS Cafe. Ohlins Road & Track NIX 30 Street cartridge kit features new designed black top caps to give the bike a more subtle look. The NIX technology is developed from high end racing such as WSBK. That gives the advantage to develop a high performance product with extensive durability. Changing to the NIX 30 street cartridge kit is easy. It fits bolt on in the standard front