How to remove and install your rear derrailleur for travelling

Here I demonstrate how to remove your rear derrailleur for packing your bike into a box for air travel, how to protect your frame from getting bent in transit. Very importantly, you should watch very carefully how to put your derrailleur back on – a mistake my customers often make is not inserting the derrailleur at the correct angle, which leads to cross threading and damaging the tip of your frame – watch this very short clip to save your bike: