Originally Posted by rpenmanparker

29" X ? X ? You get 62 inches total of the three dimensions allowed on the plane without charge. If you spread the two wheels apart sideways, you can get their total thickness down below 10 inches. That leaves you 23", just maybe 24" to work with. Is that the kind of suitcase you are looking at? Have you looked at Bike Fridays? They may give you some ideas about what is possible to pack with smaller wheels.