# Shiftmate 8a — Bike drivetrain and groupset compatibility

For Shiftmate 8a, manufacturer is JTek Engineering; component type is cable-pull adapter; speeds is 11; pairs with is Shimano 11 speed road | Shimano or SRAM 11 speed MTB | Shimano / SRAM / Campagnolo 11 speed; condition is Derailleur, recorded from its source on 2026-08-11.

- **Manufacturer:** JTek Engineering _(our reading, not quoted from the source)_
- **Component:** Shiftmate 8a
- **Component type:** cable-pull adapter _(our reading, not quoted from the source)_
- **Speeds:** 11 _(our reading, not quoted from the source)_
- **Pairs with:** Shimano 11 speed road | Shimano or SRAM 11 speed MTB | Shimano / SRAM / Campagnolo 11 speed _(verified: appears in the quote below)_
- **Condition:** Derailleur _(verified: appears in the quote below)_

## What the source says

> Shimano 11 speed road | Shimano or SRAM 11 speed MTB | Shimano / SRAM / Campagnolo 11 speed | Derailleur |

## 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

jtekengineering.com says pairs with is **Shimano 11 speed road | Shimano or SRAM 11 speed MTB | Shimano / SRAM / Campagnolo 11 speed**, as of 2026-08-11.

> Shimano 11 speed road | Shimano or SRAM 11 speed MTB | Shimano / SRAM / Campagnolo 11 speed | Derailleur |

Source: https://www.jtekengineering.com/resources/shiftmate-compatibility/

jtekengineering.com says pairs with is **Shimano or SRAM 11 speed MTB | Shimano 11 speed road | Shimano / SRAM / Campagnolo 11 speed**, as of 2026-08-11.

> Shimano or SRAM 11 speed MTB | Shimano 11 speed road | Shimano / SRAM / Campagnolo 11 speed | Shifter |

Source: https://www.jtekengineering.com/resources/shiftmate-compatibility/


### Condition

jtekengineering.com says condition is **Derailleur**, as of 2026-08-11.

> Shimano 11 speed road | Shimano or SRAM 11 speed MTB | Shimano / SRAM / Campagnolo 11 speed | Derailleur |

Source: https://www.jtekengineering.com/resources/shiftmate-compatibility/

jtekengineering.com says condition is **Shifter**, as of 2026-08-11.

> Shimano or SRAM 11 speed MTB | Shimano 11 speed road | Shimano / SRAM / Campagnolo 11 speed | Shifter |

Source: https://www.jtekengineering.com/resources/shiftmate-compatibility/


## 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/).