For use with Canyon Speedmax CF SLX bicycles, model year 2019 or newer, this is a Speedmax cockpit accessory, designed for use with a single aero-extension tower. To optimize your Speedmax CF SLX fit, this high-stack spring kit, part number GP0157-01, provides a 20-millimeter height bump, allowing you to further tailor your race fit. High-Stack Spring Kit GP0157-01 Designed to further tailor race fit with a 20 mm cockpit height bump Contents 2 x spring high EP0691-02 4 x M5x8 ISO 7380 screws Brand Canyon Material Aluminum (AL) Weight 0.26 lbs Compatibility See compatible products