| Measurement |  TransitionSentinel 2025 | TransitionSentinel 2024 |
|---|---|---|
| Stackmm | 630 | 630 |
| Reachmm | 480 | 480 |
| Head tube angle° | 65.0 | 65.0 |
| Seat tube angle° | 76.5 | 76.5 |
| Chainstaymm | 435 | 435 |
| Wheelbasemm | 1242 | 1242 |
| BB dropmm | 33 | 33 |
| BB heightmm | — | — |
| Standovermm | — | — |
| Part | Sentinel L | Sentinel L |
|---|---|---|
| Stem | 50 mm | 50 mm |
| Bar | 800 mm | 800 mm |
| Crank | 175 mm | 175 mm |
It's not often that a brand makes a bike's geometry more conservative, but that's exactly what Transition has done with the all-new Sentinel ...
The Sentinel is somewhat of a dialed-down Spire (Transition's 170mm enduro bruiser). Some elements of that bigger bike are reflected in the ...
The Transition Sentinel Carbon XT is a bike with a strong character. It climbs brilliantly and offers lots of pop and a playful character on the descents.
*The new Sentinel was designed around a 160mm fork, but you can run a 170 - I've yet to try it but will do so and report back. 2021 Transition Sentinel Deniz ...
