The Travel Keeper is equally at home protecting a frame's rear triangle during travel or providing full chain keeper functionality. Adjustable design fits all rear QR and 12mm thru axle frames and features aluminum construction, shifting across all gears, and heavy-duty solvent resistant plastic pulley. Structurally supports rear dropouts for maximum frame protection during travel Allows full forward or backward rotation of drivetrain and shifting through full range of gears Adjustable design fits 130 and 135mm QR dropouts and all 12mm thru axle frames up to 12x157mm Professional grade aluminum and solvent resistant plastic components ready for daily life in the wash bucket or traveling the world