baudman wrote:Barefoot has one - uses regularly.
Yep. We have a Giant Halfwheeler. It does get a fair bit of use now Ms 5 is too grown up for riding in her seat on Dad's bike
Generic terms for searching - try trail-a-bike or tag-along, with or without hyphens and spaces (and misspellings and alternate pronunciations like trailer-bike).
One thing to be very wary of with these things is the coupling linkage. In my experience, they are, without exception, sh!t. You'll often see kids riding these things, leaning over at 45° while the towing bike is upright... then they'll go *flop* over to lean at 45° the other way. That's especially a problem for beginning riders who don't yet have a clue about balancing for themselves.
The Giant coupling is about as good as they get, but it was quite sloppy until I packed it out with steel shims. Now it's only a little bit sloppy.
My daughter has been riding hers since she turned 4. I had to cut a seatpost down to get the saddle low enough for her to reach the pedals - she was very small for it. We've done some pretty big rides on it - she would have completed the 50km BAD ride last year except for the wet weather sapping enthusiasm for getting back on the bike after lunch.
Ours is a 7-speed version - she doesn't yet have the hand strength (nor the mechanical aptitude IMO) to operate the gears. So far we've just left it in top gear, and she pedals... a little bit
Now she's riding her own pedal bike more confidently, I can definitely see the attraction in the trailgator, for "multi-modal" rides... towing her to a destination then detaching her so she can ride independently. But I don't think it would be as good for the long rides as a dedicated 1-wheel trail-a-bike.
I've also just purchased (but not yet received) a Weehoo recumbent trail-a-bike (http://www.rideweehoo.com/
), which I intend for my disabled daughter to use. Apparently they were initially designed as a special-needs device, then went mainstream. They're not cheap... unless you find one selling second hand in a remote place that commercial couriers don't like going to, but where friends often pass through