Fitting Front QR, 12mm or 9mm adaptors (1:29 in The Video Below)
Remove the wheel from the bike and remove any disc rotors and disc rotor adaptors if fitted.
Pull out the current adaptor cap with your hands, no tools are required.
Insert the new cap into the hub end (longer one on the disc side, shorter on the non-disc side). This should be done with the widest part against the bearing.