The hope pro 2 evo rear thro axle conversion kit allows you to customise your hope hubs to fit different dropout styles and widths the hope kit converts hope pro 2 evo rear hubs for use with 12mm through axles rear conversion kits will only work on pro 2 evo hubs needing to swap the end caps the hope pro 2 evo rear thro axle conversion kit features 12mm through axles fits pro 2 evo hubs rear hubs only