# CS-HG800 / CS-HG700 / CS-RS400 — Bike drivetrain and groupset compatibility

For CS-HG800 / CS-HG700 / CS-RS400, manufacturer is SHIMANO; component type is cassette; speeds is 11; pairs with is HG spline L; condition is installing 1.85 mm spacer, recorded from its source on 2026-08-11.

- **Manufacturer:** SHIMANO _(our reading, not quoted from the source)_
- **Component:** CS-HG800 / CS-HG700 / CS-RS400 _(verified: appears in the quote below)_
- **Component type:** cassette _(our reading, not quoted from the source)_
- **Speeds:** 11 _(our reading, not quoted from the source)_
- **Pairs with:** HG spline L _(verified: appears in the quote below)_
- **Condition:** installing 1.85 mm spacer _(verified: appears in the quote below)_

## What the source says

> *3 CS-HG800 / CS-HG700 / CS-RS400 of ROAD 11-speed are compatible with HG spline L by installing 1.85 mm spacer.

## 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.

### Pairs with

productinfo.shimano.com says pairs with is **HG spline L**, as of 2026-08-11.

> *3 CS-HG800 / CS-HG700 / CS-RS400 of ROAD 11-speed are compatible with HG spline L by installing 1.85 mm spacer.

Source: https://productinfo.shimano.com/pdfs/product/archive/2025-2026_Compatibility_v037_en.pdf

productinfo.shimano.com says pairs with is **HG spline M**, as of 2026-08-11.

> *4 CS-HG800 / CS-HG700 / CS-RS400 of ROAD 11-speed are compatible with HG spline M.

Source: https://productinfo.shimano.com/pdfs/product/archive/2025-2026_Compatibility_v037_en.pdf


## Source

- https://productinfo.shimano.com/pdfs/product/archive/2025-2026_Compatibility_v037_en.pdf

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