Sizing up the Trek Session 29 2020? Compare its reach, stack, and handling against 200+ bikes with our Bike Geometry Comparison and Fit Calculator.
| Frame size letter | Geometry position | Wheel size | A — Seat tube | B — Seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S | High | 29″ | 42.5 | 57.0° | 11.5 | 62.6° | 56.8 | 35.6 | 1.6 | 45.2 | 5.8 | 12.8 | 122.8 | 74.1 | 40.0 | 61.6 |
| M | High | 29″ | 42.5 | 57.0° | 11.5 | 62.6° | 58.7 | 35.6 | 1.6 | 45.2 | 5.8 | 12.8 | 124.7 | 74.2 | 42.0 | 61.6 |
| L | High | 29″ | 45.6 | 57.0° | 11.5 | 62.6° | 60.8 | 35.6 | 1.6 | 45.2 | 5.8 | 12.8 | 126.8 | 74.7 | 44.0 | 61.6 |
| XL | High | 29″ | 45.6 | 57.0° | 11.5 | 62.6° | 63.3 | 35.6 | 1.6 | 45.2 | 5.8 | 12.8 | 129.3 | 74.9 | 46.5 | 61.6 |
| S | Low | 29″ | 42.5 | 56.6° | 11.5 | 62.1° | 58.3 | 35.0 | 2.3 | 45.3 | 5.8 | 13.1 | 122.6 | 73.5 | 39.6 | 61.9 |
| M | Low | 29″ | 42.5 | 56.6° | 11.5 | 62.1° | 60.2 | 35.0 | 2.3 | 45.3 | 5.8 | 13.1 | 124.5 | 73.6 | 41.5 | 61.9 |
| L | Low | 29″ | 45.6 | 56.6° | 11.5 | 62.1° | 62.3 | 35.0 | 2.3 | 45.3 | 5.8 | 13.1 | 126.6 | 74.3 | 43.6 | 61.9 |
| XL | Low | 29″ | 45.6 | 56.6° | 11.5 | 62.1° | 64.8 | 35.0 | 2.3 | 45.3 | 5.8 | 13.1 | 129.1 | 74.5 | 46.1 | 61.9 |
Related Geometry
More Trek geometry: 2023 Trek Fuel EXe Geometry, 2023 Trek Rail Geometry, 2023 Trek Remedy Geometry, 2023 Trek Session Geometry, 2023 Trek Slash Geometry.
Compare downhill bikes: 2023 Giant Glory Geometry, Canyon Sender 2025 Geometry, Commencal Furious 2020 Geometry.
Ride character of the Trek Session 29 2020
The Trek Session 29 2020’s handling comes down to its geometry, reach, head and seat angle, chainstay and wheelbase, balanced for its category.
Those numbers describe how it steers and sits. How the suspension actually feels, small-bump sensitivity, mid-stroke support and bottom-out ramp, comes down to its leverage and anti-squat curves: see our MTB suspension kinematics guide, and put its geometry head-to-head with any other bike in the geometry comparison tool.