[pedant alert]
A Windcheetah is an asymmetric trike. Rear axle goes through the frame on a bearing, with the deraillieur block one side, and the wheel the other. So I can replace the tube without taking the wheel off. Like I had to today, after a visit from the eastern-european can't-make-tubes-that-hold-air-properly goblin.
One winter, with snow on the ground, I saw the characteristic off-centre tracks of another Windcheetah, while riding mine. So there is another one around here somewhere...
And yes, I did check that I wasn't doing a Pooh-and-Piglet-style heffalump chase.
[/pedant alert]