Motorcycle Suspension Shock Cartridge Rod Holder Fork Spring Compressor Tool for Designed to compress upside down fork springs to allow access to the cap lock nut during assembly and disassembly.Features simple screw-in pins for secure location on the spring spacer.This tool is suitable for servicing or replacing springs in inverted cartridge forks. Constructed from 6061-T6 aluminum with an anodized finish.Available in multiple colors.The double-ended design accommodates cartridge rod diameters of 13.3mm, 14.3mm, 10.3mm, and 12.7mm.Allows safe by holding back spring force when removing or installing the bottom nut on twin or dual chamber forks, or the fork cap on cartridge type forks. Compatible with most upside down streetbike forks.Not suitable for big piston forks.Works with , Showa, and WP twin or dual chamber fork systems. Compatibility Disclaimer: This is an aftermarket replacement part.Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.