Fox Kabolt 15mm Axle So RAD!!! In search of a light weight and easy to use bolt on axle, Fox and the Racing Applications Development Team (RAD), set free into the cycling world the Kabolt 15mm axle. Geoffe Kabush asked and he received exactly what he was looking for. Weighing in at only 34. 5 grams this axle will shave nearly 40 grams from any athletes racing rig. XC, enduro, and slopestyle riders will all benefit from these new axles. They fit all FOX forks with 15QR axles. Fox Kabolt 15mm Axle Features : 100mm version is 40g lighter than our 15QR (54% weight savings) Available in 15x100mm and 15x110mm widths Compatible with all 15QR forks Installs with a 6mm hex Black and orange axles available 15x100mm weight: 34. 5g | Fox Racing Shox | Kabolt 15Mm Axle | Black | 15Mm X 100Mm