2022 Trek Session C 27.5 Frameset vs 2024 Mondraker Summum
The S is the Mondraker Summum size closest to your M Trek Session C 27.5 Frameset. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Mondraker Summum
Compared with the Trek Session C 27.5 Frameset in M, the Mondraker Summum in S places the top of the head tube 16 mm higher and about as far forward, relative to the bottom bracket. Its wheelbase is 25 mm longer, which can contribute to stability at speed.
- Frame stack
- +16 mm
- Higher front end
- Frame reach
- +1 mm
- About the same reach
- Wheelbase
- +25 mm
- Longer: steadier at speed
- Head angle
- −0.5°
- Slacker: calmer steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
We can't draw these frames yet. The Trek Session C 27.5 Frameset numbers we have for size M are missing the seat angle. The numbers below still compare.
Geometry side by side
| Measurement | Trek Session C 27.5 Frameset M | Mondraker Summum S | Difference |
|---|---|---|---|
| Reach | 429 | 430 mm | +1 mm |
| Stack | 616 | 632 mm | +16 mm |
| Head tube angle | 63.5° | 63° | −0.5° |
| Effective top tube | 584 | 573 mm | −11 mm |
| Chainstay length | 445 | 450 mm | +5 mm |
| Wheelbase | 1235 | 1260 mm | +25 mm |
| BB drop | 20 | not listed | |
| BB height | 356 | 350 mm | −6 mm |
| Standover | not listed | not listed | |
| Seat tube length | 425 | 400 mm | −25 mm |
| Head tube length | 115 | 112 mm | −3 mm |
| Seat tube angle | not listed | 77° |
Differences are the Mondraker Summum minus the Trek Session C 27.5 Frameset. Full charts: 2022 Trek Session C 27.5 Frameset, 2024 Mondraker Summum.
Where each sits in its class
Trek Session C 27.5 FramesetMondraker Summum
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 Session C 27.5 Frameset27.5 Frameset | Mondraker SummumSummum |
|---|---|---|
| Frame | Trek OCLV | not listed |
| Headset | FSA Orbit | Onoff Mercurium 1.5 ZS for 1-1/8” steerer tube |
| Fork | not listed | RockShox Boxxer RC 29 Select |
| Rear shock | not listed | RockShox Super Deluxe |
| Shifter | not listed | SRAM GX DH |
| Derailleur | not listed | e*thirteen Vario, SRAM GX DH |
| Cassette | not listed | SRAM GX DH |
| Chain | not listed | SRAM PC1110 |
| Crankset | not listed | SRAM Truvativ Descendant DH |
| Bottom bracket | not listed | SRAM DUB |
| Tire | not listed | Michelin DH34 |
| Hub | not listed | Mavic Boost |
| Rim | not listed | Mavic Deemax BikePark 29 |
| Brake | not listed | SRAM DB 8 |
| Handlebar | not listed | Onoff Sulfur 1.0 double butted 6061 alloy |
| Stem | not listed | Onoff Krypton DH CNC Integrated FG |
| Grips | not listed | Onoff Twin |
| Seatpost | not listed | SDG I-Beam SP-751 |
| Saddle | not listed | SDG I-Fly 2.0 I-Beam |
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