Bikes / Transition / Sentinel
Transition Sentinel 2025 Geometry, Reviews, and Specs

Fit and steering
Aggressive fitSlow steeringFast steeringRelaxed fit Transition Sentinel 2025 Sizing Guide
Transition Sentinel 2025 Geometry Chart
| Size | Stack | Reach | Stack/reach | Stem | Bar | Crank | Dropper | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop | Wheel size |
|---|
| S | 610 mm | 430 mm | 1.42:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.0° | 76.5° | 435 mm | 1188 mm | 33 mm | 29" |
| M | 620 mm | 455 mm | 1.36:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.0° | 76.5° | 435 mm | 1215 mm | 33 mm | 29" |
| L | 630 mm | 480 mm | 1.31:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.0° | 76.5° | 435 mm | 1242 mm | 33 mm | 29" |
| XL | 644 mm | 505 mm | 1.28:1 | 50 mm | 800 mm | 175 mm | 170 mm | 65.0° | 76.5° | 435 mm | 1272 mm |
2025 colorways
No colorway catalog for 2025 yet.
What changed in the bike frame
Same published geometry as 2024.
- Published geometry matches the 2024 Transition Sentinel. Same sizes, same stack and reach.
What changed in equipment
No verified spec sheet for 2025 or 2024.
What changed in price
No launch MSRP in the catalog yet.
Compare 2025 and 2024 Transition Sentinel side by side