Allows DT Swiss hubs to be used for easy installation on Rock Shox Torque Cap compatible forks Torque caps increase the contact surface area between frame and fork resulting in a stronger and stiffer interface and more control Fits all 15mm thru axle 350 hubs as well as 1700 and 1900 series front wheels Does not fit QR hubs HWGXXX0009100S FT 350/370 15mm TA 110mm Boost 23g 1700/1900 SplineUPC/EAN/GTIN: 7630033858960