FKS504 - OHLINS Yamaha MT-09 / Tracer 900 / XSR900 (14/20) Front Fork Cartridge KitFront fork cartridge kit by Ohlins for Yamaha MT 09 Tracer 900 XSR900. The NIX 30 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 us 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 legs and you get adjustable