>>989
World Trollerはこんなかんじの26 x 26 x 10 inches (66 x 66 x 25.4 cm)のケースに入るそうです。
https://www.sjscycles.co.uk/transporting-bicycles/s-and-s-machine-hard-bike-case-grey/
https://www.sjscycles.co.uk/transporting-bicycles/s-and-s-machine-backpack-case-black/