Trek Session
DH and bike-park specialists. Not an all-mountain trail bike.
Downhill race bike. Slack, long-travel, and unhappy if you try to pedal it like a Slash on a fire road.
DH and bike-park specialists. Not an all-mountain trail bike.
Downhill race bike. Slack, long-travel, and unhappy if you try to pedal it like a Slash on a fire road.
| Measurement |  CommencalSupreme 2026 |  CommencalSupreme 2025 |  TrekSession 2024 |
|---|---|---|---|
| Stackmm | 642 | 642 | 638−4 |
| Reachmm | 478 | 478 | 480+2 |
| Head tube angle° | 63.0 | 63.0 | 63.0 |
| Seat tube angle° | 77.5 | 77.5 | 77.5 |
| Chainstaymm | 445 | 445 | 445 |
| Wheelbasemm | 1289 | 1289 | 1289 |
| BB dropmm | 12 | 12 | 10−2 |
| BB heightmm | — | — | — |
| Standovermm | — | — | — |
| Part | Supreme L | Supreme L | Session L |
|---|---|---|---|
| Stem | 50 mm | 50 mm | 50 mm |
| Bar | 800 mm | 800 mm | 800 mm |
| Crank | 175 mm | 175 mm | 175 mm |
The Commencal Supreme V4 won just about everything there is to win, and the new V5 is already well on its way to being equally as successful ...
Commencal Supreme V5 Review - The Gold Standard - 2025 Downhill Bike Shootout. Brian Cahal•24K views · 11:03 · Go to channel Peter Jamison ...
New Trek Session features adjustable suspension progression and is compatible with multiple wheel size configurations.
2021 Trek Session is a 200mm travel 29er downhill bike, with high pivot idler design, that can also be configured to run mullet or 27.5in wheels.