# Campagnolo 12 speed — Bike drivetrain and groupset compatibility For Campagnolo 12 speed, manufacturer is JTek Engineering; component type is shifter; condition is Can't be done, recorded from its source on 2026-08-11. - **Manufacturer:** JTek Engineering _(our reading, not quoted from the source)_ - **Component:** Campagnolo 12 speed _(verified: appears in the quote below)_ - **Component type:** shifter _(our reading, not quoted from the source)_ - **Pairs with:** Campagnolo 12 speed _(verified: appears in the quote below)_ - **Condition:** Can't be done _(verified: appears in the quote below)_ ## What the source says > Campagnolo 12 speed | Campagnolo 12 speed | Campagnolo 10 speed | Can't be done | ## Source - https://www.jtekengineering.com/resources/shiftmate-compatibility/ Last verified: 2026-08-11. Review by: 2027-08-11. Part of [Bike drivetrain and groupset compatibility](https://referencesource.org/bike-drivetrain-groupset-compatibility/).