Flying Ryanair with bike.

Tagged this as route discussion but unsure what it actually falls under. I have a cannondale cujo 1 hard tail on 27.5” with a large men’s frame, is anyone aware of the procedure of flying with ryanair? I can easily book on the bike on the app with the flight - is it as simple as just taking the front wheel off and putting into a bike box the same way it was delivered too me from the shop? Other things I desperately want to know are; if for example the bike is 18/20kg ( I’m unsure of the actual weight would have to check ) does that mean I can leave my frame bag / handlebar bag attached to the bike with various things in amounting to the 30kg weight limit? Or is it a case of inside the box is the bike and the bike only? Apologies in advance if this is all noob stuff, it’s my first attempt at flying to my start point. Thanks!