Hey, I’ve recently gotten into MTB and started learning the anatomy of a bike.
The rear hub makes a clicking noise when coasting but is silent when pedaling – this is caused by springs or ratchets in the hub either engaging with the rest of the system or going the opposite direction, causing the springs (ratchets) to click.
And here is what I cannot fully grasp: What makes the inside of the hub suddenly start going in the other direction when coasting?
Sorry if my description was somewhat vague but I did my best 😀
Thanks!
In: 23
Imagine you are standing by a twirling kiddie merry go round, holding out your hand and letting the poles slap it as they go by. You’ll hear a slap-slap-slap-slap sound. Then you decide you want to speed it up, so you put your hand behind of the poles and start running around the merry go round, pushing it. No more slapping.
A bike hub is a bit like that. When you are coasting, parts that normally that work together inside the hub are slapping each other. Once you start to pedal, the parts engage and the chain starts to drive the wheel forward, just like you running and pushing the merry-go-round, and the slapping sound stops.
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