ARRRGGGGHHHH!!! Typed up this whole fun response and the computer ate it!
: Frickin' frackin' gosh dang....
Oh well. Starting over:
I believe the vehicle you are referring to is the Graham Carriage Works "Hyperbike," made in OR. And yes Margo, some of us "sylph-like young folks" are fond of them! LOL. I love you, you know that right? :bgrin
I can't speak to the "purpose" as such, but like most things it started out with someone getting a bright idea. Bob wanted to design a miniature racing bike that was as light as possible so he stripped the idea of a cart down to it's most basic parts: wheels, shafts, seat, and somewhere to put your feet. And ya know, if you put the seat on the end of the shafts you can save a lot of weight! :lol: That was the racing bike. Then he redesigned it for trail-driving, making it incredibly strong and secure. There is no part of the current Hyperbike that is not engineered into the ground. I don't personally find it very comfortable for just poking along at a walk as my back complains about having my legs up that high but when I get going at speed there is nothing better. You use your legs to brace and flex like a skier or snowboarder would so instead of fighting to maintain your seat like in a regular easy entry cart you can get entirely into your fast tight turns with no worries and no discomfort. I happily tackle manuevers and trails in the Hyperbike that would turn me green in any other cart. It is light enough at 27lbs that you can lift it over obstacles on a trail, manueverable enough to go just about anywhere, and the last thing I worry about is breaking it.
To me the point of the Hyperbike is freedom. I weigh less than my easy entry cart does so getting it in and out of the truck bed by myself is practically impossible without risking injury. With the Hyperbike I am free to take my driving horse anywhere, anytime, because I can store my vehicle in the trailer tack room! :aktion033: Gotta love it.
Since our ocean trip we now have proof positive that mares will not pee in your lap, nor geldings poop on you. :lol: Kody rears, bucks, and pulls all sorts of shenanigans and while it is scary I'm not sure it's worse than in a regular cart. (Believe me, I've had him pull it in both.) At least if the Hyperbike flips somehow you aren't going to get hurt by the cart itself! :new_shocked: The stirrups on the Hyperbike are adjustable and can be made grippy so losing them isn't nearly as much of a risk as in a normal Jerald-style roadster vehicle.
So anyway, I know I went off there but the advantages/purpose of the Hyperbike is to be super-light, manueverable, comfortable, and suited to speed and rough country. Does that answer your question?
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It is NOT suitable for passengers, show-ring driving, or those who have mobility problems (you have to step over the shafts to get in and out.)
Leia