# N3W — Bike drivetrain and groupset compatibility

For N3W, manufacturer is Campagnolo; component type is freehub; speeds is 13; pairs with is 12 or 13 speed cassettes, recorded from its source on 2026-08-11.

- **Manufacturer:** Campagnolo _(our reading, not quoted from the source)_
- **Component:** N3W
- **Component type:** freehub _(our reading, not quoted from the source)_
- **Speeds:** 13 _(our reading, not quoted from the source)_
- **Pairs with:** 12 or 13 speed cassettes _(verified: appears in the quote below)_
- **Condition:** AC21-N3W adapter _(per lightbicycle.com, not stated by the source above)_

## What the source says

> Designed to work with their newer 12 or 13 speed cassettes, Campagnolo’s new freewheel body is a patented standard.

## Sources disagree

More than one authority states this, and they do not state the same
thing. Both are reproduced with the source each came from.

### Speeds

lightbicycle.com says speeds is **13**, as of 2026-08-11.

> Designed to work with their newer 12 or 13 speed cassettes, Campagnolo’s new freewheel body is a patented standard.

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

lightbicycle.com says speeds is **12**, as of 2026-08-11.

> Adding the AC21-N3W adapter will create the same length as the classic freehub body, making it backwards compatible with their 9, 10, 11 or 12 speed cassettes (model’s starting with an 11t cog).

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


### Pairs with

lightbicycle.com says pairs with is **12 or 13 speed cassettes**, as of 2026-08-11.

> Designed to work with their newer 12 or 13 speed cassettes, Campagnolo’s new freewheel body is a patented standard.

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

lightbicycle.com says pairs with is **9, 10, 11 or 12 speed cassettes**, as of 2026-08-11.

> Adding the AC21-N3W adapter will create the same length as the classic freehub body, making it backwards compatible with their 9, 10, 11 or 12 speed cassettes (model’s starting with an 11t cog).

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


## 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/).