They aren’t.
Bycycles are just cars with 4 wheels that have 4 invisible wheels.
And no, using Claude or ChatGPT is a horrible idea if you don’t know enough to verify what it gives you back. Actually its a horrible idea even when you do know enough…
Really. What’s wrong with you just learning what you need to learn to achieve what you want to achieve?
Is it an “I’m against learning” thing or what?
Because AI isn’t really going to save you time.
But you can exploit the AI to actually learn instead…
Additionally, do keep on mind that Chaos Physics can barely do cars.
Attempting to make a completely useless accademical realistic bycycle would definitely be near impossible.
If not just for the fact that the engine physics don’t really understand the concept of gyroscoping…
You would basically need to write a classical mechanics setup to get it to work.
And the OP issue was a decent one, in academic terms.
A circle has infinite precisions whereas any defined collision does not.
Thus, making a sphere or a sphiel would allow for perfect “rolling” while using custom collisions would not save for very complex and expensive versions.
When all you need is a radius definition for the math to work, and you don’t have that option - yes, it does seem like the engine is lacking. Which it 100% was and still is, and likely will always be.
You should probably stick to box collision.
A box is also a circle. With corners.
You just fake the object rotation without having any physics to it, like all the cars do…
Because of the corners you will likely need to adapt smaller than radius objects to provoke fake collisions - so you can use collision channels and a sphere the exact size of R to define/check that collision and apply impulse to the object or similar