Originally Posted by
mingo
I haven't seen anyone post anything on the Helix forum about traveling by air with one. Some have tried to find something suitable but nothing seems to come in under the 62" linear inch limit for standard suitcases without additional fees. Helix in the past had posted a CAD design of a Helix suitcase which basically cut the corners around the wheels which I think is how you will get to 62".
When do you expect to receive your bike?
I'm a kickstarter backer and after 5 years of waiting, I think I will be selling my pledge and moving on as I no longer need this bike and travel with my Brompton instead.
As you can see, by angling the corners around the wheels, and that's how you get to 62" is my guess.

Bike is scheduled for June.
Nice mock-up: I'd hate to carry that thing on my back for any distance!
The main reason I eliminated consideration of the Brompton is that I found it to be too reactive during a test run a few years back (and hated the transmission system, a matter that a bit of additional investment could fix). The Helix is the only other bike that folds reasonably flat, a property I want for placement in the back of my car.