I have included Del the Cat in the title as his input is vital. I am interested in chariot history, but I believe that the bowyers and arrow makers combined the skills and technology to make a chariot wheel.
I saw a picture of a composite bow (I think that is the term) which suggests it can form a near perfect circle, inside out, when unstrung. This looks like a wheel rim. Arrow technology suggests that the jointing skills to connect an arrow used as a spoke to rim and nave, would be available.
At heart, a chariot is an axle, two wheels and a couple of poles up the side of the pony. The loads are minimal as long as the man stands on the chariot at the centre of effort, and is solo. I can prove this as I drive chariots at high speed cross country on a regular basis, using a harness that would break if attached to any conventional vehicle.
This idea needs bowmaking technology because the animal skills were out in the country with the nomadic hunters, the same people who developed the kayak with similar technology. If a chariot can be built in a tent by gluing and binding small bits of wood and bone, rather than needing timber and manpower and industry, it shifts the chariot building to the area where the ponies and the pony skills were.
Is there any reason why bow making technology couldn't produce a light wheel for a one man pony drawn vehicle? The axle only needs to be 0.7 meter maximum, and the shafts up the pony sides could be 1.3 meter. Small spears or tentpoles are bigger. The wheel diameter that I use regularly is 400mm.
We can assume the rider/driver has balance, and I am working on the basis of a skateboard. It is absolutely clear to me that skateboards cannot work. I have tried one and they are unstable, silly and dangerous. But other people seem to do OK.
I don't expect finished technical drawings, I don't know if this ever happened and I can't prove it did. I am just asking whether it might. Looking at Del's repeating crossbow, I think bowmakers have some pretty impressive skills.
Simon

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