The only problem I can see is that it will be wrapped. I went through the security ok with a slx chainset and on another occasion a full set of chainrings. They were wrapped in bubble wrap. Only thing I had a problem with was my multitool. Forgot to take it out of my pack but when they checked it had no knives etc. I was allowed to take it with me on board.
However it was flying from Edinburgh to Warsaw through London and Glasgow to Lodz.
German security might be a PITA. My mum was only 2-3 minutes late for her flight to Australia (she got lost on the motorway). She managed to get to the airport, they still took her luggage at the check in desk, but then the security staff said it was too late to get on the plane even though the boarding has just started!