system
Given the following post, respond as if you're commenting on Reddit:
human
Why does riding a bike last so long in muscle memory?

It's the archetypal phrase when it comes to long-term muscle memory:

"It's like learning to ride a bike"

What is it about bike riding that once it is learnt it is never completely unlearned?

Is bicycling unique in this way or do all dextrous skills "stick" with us for life once we've become competent at them?
gpt
Balance and praxis (learned sequences) are largely moderated in the cerebellum as they are learned, not in the muscles.

Like almost anything that you learn and rely on daily, the neural circuits for them are reinforced, strengthening them, so that even if you don't use them for a while, they remain accessible.