2025 Trek Session vs 2024 Mondraker Summum R
We can't match sizes for these two: one of them has no stack and reach for the sizes shown.
What changes on the Mondraker Summum R
- Frame stack
- n/a
- One of the bikes has no number for this
- Frame reach
- n/a
- One of the bikes has no number for this
- Wheelbase
- +43 mm
- Longer: steadier at speed
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Session numbers we have for size R2 are missing the reach, stack and seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Session R2 | Mondraker Summum R XL | Difference |
|---|---|---|---|
| Head tube angle | 63 | 63.5° | +0.5° |
| Effective top tube | 618 | 643 mm | +25 mm |
| Chainstay length | 445 | 450 mm | +5 mm |
| Wheelbase | 1277 | 1320 mm | +43 mm |
| Standover | 751 | not listed | |
| Reach | not listed | 500 mm | |
| Stack | not listed | 632 mm | |
| Seat tube angle | not listed | 77° | |
| BB height | not listed | 350 mm | |
| Seat tube length | not listed | 400 mm | |
| Head tube length | not listed | 112 mm |
Differences are the Mondraker Summum R minus the Trek Session. Full charts: 2025 Trek Session, 2024 Mondraker Summum R.
Where each sits in its class
Trek SessionMondraker Summum R
AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted
Each bike is ranked against the other downhill bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Trek Session8 | Mondraker Summum RR |
|---|---|---|
| Frame | Trek Session 8 | not listed |
| Fork | RockShox BoXXer | Fox FLOAT |
| Rear shock | Marzocchi Bomber | Fox DHX2 Performance elite |
| Cassette | SRAM GX DH | SRAM GX DH |
| Chain | SRAM PC 1110 | SRAM PC1110 |
| Crankset | TruVativ Descendant GX | SRAM Truvativ Descendant DH |
| Chainring | TruVativ 34 | not listed |
| Pedals | Wellgo BO-87B | not listed |
| Wheelset | Bontrager Line DH 30 | not listed |
| Tire | Bontrager G5 Team Issue, Bontrager G5 | Michelin DH34 |
| Brake | SRAM Code RSC | SRAM Code Stealth Bronze |
| Handlebar | Bontrager Line | Onoff Sulfur 1.0 double butted 6061 alloy |
| Stem | Bontrager Line | Onoff Krypton DH CNC Integrated FG |
| Seatpost | Bontrager Rhythm Elite | SDG I-Beam SP-751 |
| Saddle | Bontrager Arvada | SDG I-Fly 2.0 I-Beam |
| Shifter | not listed | SRAM GX DH |
| Derailleur | not listed | e*thirteen Vario, SRAM GX DH |
| Bottom bracket | not listed | SRAM DUB |
| Hub | not listed | e*thirteen Boost, e*thirteen Superboost |
| Rim | not listed | e*thirteen LG1 Plus DH |
| Grips | not listed | Onoff Desert |
| Headset | not listed | Onoff Mercurium 1.5 ZS for 1-1/8” steerer tube |
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
