2025 Orbea Orca M20i LTD vs 2027 Trek Madone SL Gen 8
The ML is the Trek Madone SL Gen 8 size closest to your 55 Orbea Orca M20i LTD. 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 Trek Madone SL Gen 8
Compared with the Orbea Orca M20i LTD in 55, the Trek Madone SL Gen 8 in ML places the top of the head tube 10 mm lower and about as far forward, relative to the bottom bracket. Its wheelbase is 11 mm shorter, which can contribute to quicker direction changes.
- Frame stack
- −10 mm
- Lower front end
- Frame reach
- −2 mm
- About the same reach
- Wheelbase
- −11 mm
- Shorter: quicker to change direction
- Head angle
- +0.5°
- Steeper: sharper steering
- Chainstays
- +2 mm
- About the same
The two frames
Only the Orbea Orca M20i LTD is drawn. The Trek Madone SL Gen 8 numbers we have for size ML are missing the seat angle.
Geometry side by side
| Measurement | Orbea Orca M20i LTD 55 | Trek Madone SL Gen 8 ML | Difference |
|---|---|---|---|
| Reach | 391 | 389 | −2 mm |
| Stack | 572 | 562 | −10 mm |
| Head tube angle | 73 | 73.5° | +0.5° |
| Seat tube angle | 73.5 | not listed | |
| Effective top tube | 560.4 | 557 | −3 mm |
| Chainstay length | 408 | 410 | +2 mm |
| Wheelbase | 991.4 | 980 | −11 mm |
| BB drop | 70 | 70 | ±0 mm |
| BB height | 270.5 | not listed | |
| Standover | 808.5 | 790 | −19 mm |
| Seat tube length | 520 | 512 | −8 mm |
| Fork length | 365 | not listed | |
| Head tube length | 173.1 | 150 | −23 mm |
Differences are the Trek Madone SL Gen 8 minus the Orbea Orca M20i LTD. Full charts: 2025 Orbea Orca M20i LTD, 2027 Trek Madone SL Gen 8.
Where each sits in its class
Orbea Orca M20i LTDTrek Madone SL Gen 8
Each bike is ranked against the other road 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 | Orbea Orca M20i LTDM20i LTD | Trek Madone SL Gen 8SL 6 AXS Gen 8 |
|---|---|---|
| Frame | Orbea Orca | not listed |
| Shifter | Shimano ST-8170 Ultegra Di2 | SRAM Rival AXS E1 |
| Derailleur | Shimano Ultegra | SRAM Rival AXS |
| Cassette | Shimano Ultegra | SRAM XG1250 |
| Crankset | Shimano Ultegra Mid Compact | SRAM Rival AXS |
| Wheelset | OQUO Road Performance RP45LTD | Bontrager Aeolus Elite 50 |
| Tire | Vittoria Corsa Pro G2.0 | Bontrager Aeolus Pro |
| Brake | Shimano Ultegra R8170 Di2 | not listed |
| Rotor | Shimano Ultegra R8170 | SRAM Paceline |
| Fork | not listed | Trek Madone Gen 8 |
| Bottom bracket | not listed | SRAM DUB |
| Stem | not listed | Trek RCS |
| Seatpost | not listed | Trek Madone |
| Saddle | not listed | Bontrager Aeolus Elite |
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
