2021
2021 Trek Marlin
Reach 376 to 480 mm, stack 565 to 641 mm. The Marlin 4 build comes with Shimano Tourney TY500 shifting and Formula DC-20 wheels.
Source: trekbikes.com. Checked .
Key facts
- Brand
- Trek
- Model
- Marlin
- Model year
- 2021
- Geometry labels
- XS, S, M, ML, L, XL, and XXL
- Drivetrain
- Varies by build
- Fork
- Varies by build
- Wheels
- Formula DC-20
- Geometry
- Complete for every size
- Source
- trekbikes.com
- Checked
Geometry by size
| Measurement | XS | S | M | ML | L | XL | XXL |
|---|---|---|---|---|---|---|---|
| Reach(mm) | 376 | 385 | 418 | 434 | 451 | 466 | 480 |
| Stack(mm) | 565 | 574 | 598 | 598 | 608 | 626 | 641 |
| Head tube angle(°) | 69.5 | 69.5 | 69.5 | 69.5 | 69.5 | 69.5 | 69.5 |
| Seat tube angle(°) | 73.0 | 73.0 | 72.5 | 72.3 | 72.0 | 72.0 | 72.0 |
| Effective top tube(mm) | 543 | 555 | 595 | 611 | 631 | 652 | 670 |
| Chainstay length(mm) | 438 | 438 | 438 | 438 | 438 | 438 | 438 |
| Wheelbase(mm) | 1049 | 1066 | 1109 | 1125 | 1145 | 1167 | 1186 |
| BB drop(mm) | 58 | 48 | 58 | 58 | 58 | 58 | 58 |
| BB height(mm) | 292 | 302 | 311 | 311 | 311 | 311 | 311 |
| Standover(mm) | 705 | 728 | 743 | 750 | 747 | 750 | 783 |
| Seat tube length(mm) | 343 | 368 | 419 | 444 | 470 | 521 | 559 |
| Head tube length(mm) | 90 | 90 | 90 | 90 | 100 | 120 | 135 |
Stock build
Marlin 4
Frame
Trek Alpha
Suspension
Drivetrain
Wheels & Tires
Brakes
Seatpost & Saddle
Keep your Marlin 4 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
Marlin 6
Frame
Trek Alpha
Suspension
SR Suntour XCT30
Drivetrain
Shimano Acera M315
VP 536
Wheels & Tires
Brakes
Seatpost & Saddle
Keep your Marlin 6 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 2021 Trek Marlin?
- Geometry is listed for XS, S, M, ML, L, XL, and XXL.
- What are the reach and stack of the 2021 Trek Marlin in size ML?
- In size ML, reach is 434 mm and stack is 598 mm.
- What is the head tube angle of the 2021 Trek Marlin?
- The head tube angle is 69.5 degrees in every size.
- What does the 2021 Trek Marlin 4 ship with?
- The stock build includes Trek Alpha, SR Suntour M3030, Shimano Altus EF500, and Formula DC-20.
- Which years of the Trek Marlin are on Quiver?
- Quiver has the Trek Marlin for 2021, 2027, 2026, 2025, 2023, 2022, 2020, 2019, 2018, 2017, 2016, 2015, 2013, 2012, and 2011.
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