submitted 2 months ago* (last edited 2 months ago) by Cort@lemmy.world to c/bicycles@lemmy.ca

15 comments fedilink hide all child comments

Does anybody know what the name of this feature is?

This is the back side of a hyperglide hub where the hub body engages the wheel hub. I'm trying to upgrade to 10 speed. Original on the left, new part on the right. There's 10 teeth on the old one and 15 on the new one.

New one obviously won't fit due to the difference in the number of teeth, but adding 10 tooth to my searches doesn't bring up anything helpful

you are viewing a single comment's thread
view the rest of the comments

[-] Cort@lemmy.world 2 points 2 months ago

So Shimano calls it a freewheel, and the ratchet mechanism is internal. The spline is what transmits force from the cassette to the rest of the hub/wheel, and/or what allows to wheel to spin the ratchet inside the freewheel with not pedaling.

Shimano Fh-c201 was the part I needed.

this post was submitted on 27 Jun 2026

26 points (100.0% liked)

Bicycles

6354 readers

1 users here now

Welcome to !bicycles@lemmy.ca

A place to share our love of all things with two wheels and pedals. This is an inclusive, non-judgemental community. All types of cyclists are accepted here; whether you're a commuter, a roadie, a MTB enthusiast, a fixie freak, a crusty xbiking hoarder, in the middle of an epic across-the-world bicycle tour, or any other type of cyclist!

Community Rules

No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia.
Be respectful. Everyone should feel welcome here.
No porn.
No ads / spamming.
Ride bikes

Other cycling-related communities

founded 3 years ago

MODERATORS

Evkob@lemmy.ca