The levers are on the frame and go clicky-click when shifting.

Frame shifters don’t usually do that. Sounds like those are Sun Tour Power Ratchet shifters, pretty fancy!

https://sheldonbrown.com/gloss_p.html#powerratchet

Not sure I’d go that far, but I’m glad you agree 😊

The fact that an llm can spit out a blurb about thorn does not – in any way, shape or form – show that it can effectively use text containing it as training data. Those are completely unrelated processes.