# MicroSpline — Bike drivetrain and groupset compatibility For MicroSpline, manufacturer is Shimano; component type is freehub; speeds is 12; pairs with is MS freehub splines and cassettes; condition is can’t be combined with other standards, recorded from its source on 2026-08-11. - **Manufacturer:** Shimano _(our reading, not quoted from the source)_ - **Component:** MicroSpline - **Component type:** freehub _(our reading, not quoted from the source)_ - **Speeds:** 12 _(our reading, not quoted from the source)_ - **Pairs with:** MS freehub splines and cassettes _(verified: appears in the quote below)_ - **Condition:** can’t be combined with other standards _(verified: appears in the quote below)_ ## What the source says > MS freehub splines and cassettes are mounted differently and can’t be combined with other standards. ## 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/).