The HELIX by Travel Buggy folds flat in one pull, without coming apart into pieces, and its wide track is what makes it feel steady outdoors. Four wheel pivot steering brings it round in 37 inches.
It weighs 55 lb, carries up to 265 lb, runs to 6 km/h and goes 20 km on a charge, with a climbing ability of 10 degrees. Folded it is 35 by 24 by 13.7 inches.
Two lithium packs are included at about 139 watt hours each, both under the 160 Wh cabin ceiling, which is why it is sold as airline and cruise approved. Solid polyurethane tires mean nothing to puncture.
Ask about trying one
 Key specifications: Top speed: 6 km/h; Distance per charge: 20 km; Hill it can climb: 10°; Weight limit: 265 lb; Heaviest piece: 55 lb; Outside width: 24 in; Total weight: 59 lb; Turning radius: 37 in; Overall size: 40 × 24 × 30 in; Folded size: 35 × 24 × 13.7 in; Comes apart: No; Curb it can climb: 2 in; Seat width: 15.75 in; Seat height: 18.3 in; Wheels: 8 in; Battery: Lithium, 2 × 5.8 Ah; Airline approved: Yes, both batteries; Charge time: 4 to 6 hrs; Back height: 8.5 to 10 in; Seat depth: 14.75 in; Motor: 250 W. Travel Buggy figures.
 Frequently asked questions:
 Can I take the HELIX on a plane? Yes. It carries two packs of about 139 watt hours each, both under the 160 Wh cabin limit, and it is sold as airline and cruise approved. Airlines want 48 hours notice and their own approval. Confirm before you book.
 Will the HELIX fit on a TransLink bus? TransLink's limit on a conventional bus is 48 inches long by 24 wide. The HELIX fits inside, at 40 by 24 inches, exactly on the width limit. No permit or decal is needed.