# 9/10/11-speed freehubs — Bike drivetrain and groupset compatibility

For 9/10/11-speed freehubs, manufacturer is Campagnolo; component type is freehub; speeds is 12; pairs with is Ultra-Drive cassettes; condition is no spacers required, recorded from its source on 2026-08-11.

- **Manufacturer:** Campagnolo _(our reading, not quoted from the source)_
- **Component:** 9/10/11-speed freehubs _(verified: appears in the quote below)_
- **Component type:** freehub _(our reading, not quoted from the source)_
- **Speeds:** 12 _(our reading, not quoted from the source)_
- **Pairs with:** Ultra-Drive cassettes _(verified: appears in the quote below)_
- **Condition:** no spacers required _(verified: appears in the quote below)_

## What the source says

> Its 9/10/11-speed freehubs are compatible with all the Ultra-Drive cassettes of either 9, 10, 11 or 12-speed (11t starting cog) with no spacers required.

## Source

- https://www.lightbicycle.com/newsletter/Bike-Freehub-Cassette-Compatibility-Manual.html

Last verified: 2026-08-11. Review by: 2027-08-11.
Part of [Bike drivetrain and groupset compatibility](https://referencesource.org/bike-drivetrain-groupset-compatibility/).