WHITES FORK TUBE CARTRIDGE ROD HOLDING PLATE FORK TUBE TOOLThe fork tube tool is used for assembling and disassembling fork tubes from the fork bottoms, while the cartridge rod holding plate is perfect for disassembly and assembly of KYB Showa Twin Chamber and most street cartridge forks. Designed to hold back the spring allowing you to loosen or tighten the bottom nut or fork cap on cartridge forks. For assembling disassembling forks tubes from the bottom Compatible with KYB Showa Twin Chamber forks Also