2026
2026 Trek Madone SL Gen 8
The 2026 Trek Madone SL Gen 8 sits in the middle of the range for road bikes, with a longer rear center. Reach 370 to 402 mm, stack 507 to 610 mm. The Madone SL 5 Gen 8 build comes with Shimano 105 R7100 shifting and Bontrager Paradigm 23 wheels.
Source: trekbikes.com. Checked .
Key facts
- Brand
- Trek
- Model
- Madone
- Model year
- 2026
- Frame
- SL Gen 8
- Type
- Road
- Geometry labels
- XS, S, M, ML, L, and XL
- Drivetrain
- Varies by build
- Wheels
- Varies by build
- Geometry
- Complete for every size
- Source
- trekbikes.com
- Checked
Geometry by size
| Measurement | XS | S | M | ML | L | XL |
|---|---|---|---|---|---|---|
| Reach(mm) | 370 | 378 | 384 | 389 | 394 | 402 |
| Stack(mm) | 507 | 530 | 546 | 562 | 582 | 610 |
| Head tube angle(°) | 71.6 | 72.2 | 72.9 | 73.5 | 73.8 | 73.9 |
| Effective top tube(mm) | 517 | 532 | 545 | 557 | 568 | 584 |
| Chainstay length(mm) | 410 | 410 | 410 | 410 | 411 | 412 |
| Wheelbase(mm) | 971 | 976 | 981 | 980 | 990 | 1007 |
| BB drop(mm) | 72 | 72 | 70 | 70 | 68 | 68 |
| Standover(mm) | 704 | 734 | 762 | 790 | 820 | 863 |
| Seat tube length(mm) | 404 | 440 | 476 | 512 | 548 | 609 |
| Head tube length(mm) | 100 | 121 | 136 | 150 | 172 | 201 |
Stock build
Madone SL 5 Gen 8
Frame
Suspension
Drivetrain
Wheels & Tires
Cockpit
Seatpost & Saddle
Keep your Madone SL 5 Gen 8 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
Madone SL 6 AXS Gen 8
Suspension
Wheels & Tires
Keep your Madone SL 6 AXS Gen 8 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
Madone SL 6 Gen 8
Frame
Drivetrain
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
Keep your Madone SL 6 Gen 8 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
Madone SL 7 Gen 8
Suspension
Wheels & Tires
Keep your Madone SL 7 Gen 8 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
Madone SL Gen 8
Suspension
Keep your Madone SL Gen 8 in Quiver
Start from this build's stock parts, then record your upgrades. Review it before adding it to your garage.
Free on App StoreFree on Google PlayFree for your first bike, on iPhone and Android.Already have Quiver? Open this build
MManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2026 Trek Madone SL Gen 8?
- Geometry is listed for XS, S, M, ML, L, and XL.
- What are the reach and stack of the 2026 Trek Madone SL Gen 8 in size ML?
- In size ML, reach is 389 mm and stack is 562 mm.
- What is the head tube angle of the 2026 Trek Madone SL Gen 8?
- The head tube angle is 73.5 degrees in size ML.
- What does the 2026 Trek Madone SL 5 Gen 8 ship with?
- The stock build includes Trek OCLV, Trek Madone Gen 8, Shimano 105 R7120, and Bontrager Paradigm 23.
- Which years of the Trek Madone are on Quiver?
- Quiver has the Trek Madone for 2026, 2027, 2025, 2024, 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, 2005, and 2004.
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