We’ve received a few variations on this question and asked our customer service resident expert Jakub Macel, who has travelled extensively to races with his P5. Here’s his answer:
Below are images of how I’ve been packing my P5 for travel using a hard case. The first pic shows how I lay out the frame and parts. Note that the rear derailleur is removed from the hanger and the front brake is tucked inside the main triangle after it is wrapped with bubble wrap or a towel. The bar is then laid across the frame with some bubble wrap between the frame and bar to protect both. Small parts such as the headset and any bolts I removed are placed in a separate ziplock bag so they don’t get lost.
If you are using the “high V” bar option like below it helps to remove it from the base bar to allow it to sit more flush by placing it just in front of the bar.
I’ve travelled with my P5 to multiple events with no issues when packed this way.
For soft cases, the packing would be similar with the way the bar is laid beside the frame. Some extra packing material around the bar and frame would be recommended because the frame and parts tend to shift around more in the soft style cases, so filling the empty space helps keep it secure and safe.