2021
2021 Trek Checkpoint ALR
The 2021 Trek Checkpoint ALR sits in the middle of the range for gravel bikes, with a steeper head angle. Reach 373 to 397 mm, stack 532 to 638 mm. The Checkpoint ALR 4 build comes with Shimano GRX RX400 shifting and Bontrager TLR Disc Aluminum wheels.
Source: trekbikes.com. Checked .
Key facts
- Brand
- Trek
- Model
- Checkpoint
- Model year
- 2021
- Frame
- ALR
- Type
- Gravel
- Geometry labels
- 49, 52, 54, 56, 58, and 61
- Drivetrain
- Varies by build
- Fork
- Trek Checkpoint
- Geometry
- Complete for every size
- Source
- trekbikes.com
- Checked
Geometry by size
| Measurement | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Reach(mm) | 373 | 379 | 383 | 387 | 391 | 397 |
| Stack(mm) | 532 | 549 | 567 | 586 | 609 | 638 |
| Head tube angle(°) | 71.4 | 71.6 | 71.8 | 72.2 | 72.3 | 72.6 |
| Effective top tube(mm) | 515 | 536 | 551 | 566 | 577 | 592 |
| Chainstay length(mm) | 425 | 425 | 425 | 425 | 425 | 425 |
| Wheelbase(mm) | 995 | 1005 | 1014 | 1020 | 1032 | 1044 |
| BB drop(mm) | 78 | 78 | 76 | 76 | 74 | 74 |
| Standover(mm) | 749 | 770 | 789 | 808 | 829 | 858 |
| Seat tube length(mm) | 490 | 520 | 540 | 560 | 580 | 610 |
| Head tube length(mm) | 90 | 107 | 126 | 145 | 171 | 200 |
Stock build
Checkpoint ALR 4
Frame
Trek Alpha
Suspension
Trek Checkpoint
Drivetrain
Wheels & Tires
Bontrager TLR Disc Aluminum
Brakes
Cockpit
Bontrager Elite IsoZone VR-CF
Niner Alloy
Seatpost & Saddle
Keep your Checkpoint ALR 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
Checkpoint ALR 5
Frame
Trek Alpha
Suspension
Trek Checkpoint
Drivetrain
Shimano GRX RX810
Shimano RS500
Wheels & Tires
Brakes
Cockpit
Bontrager Elite IsoZone VR-CF
Seatpost & Saddle
Keep your Checkpoint ALR 5 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
✓Sources agreeMManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2021 Trek Checkpoint ALR?
- Geometry is listed for 49, 52, 54, 56, 58, and 61.
- What are the reach and stack of the 2021 Trek Checkpoint ALR in size 56?
- In size 56, reach is 387 mm and stack is 586 mm.
- What is the head tube angle of the 2021 Trek Checkpoint ALR?
- The head tube angle is 72.2 degrees in size 56.
- What does the 2021 Trek Checkpoint ALR 4 ship with?
- The stock build includes Trek Alpha, Trek Checkpoint, Shimano GRX RX400, and Bontrager TLR Disc Aluminum.
- Which years of the Trek Checkpoint are on Quiver?
- Quiver has the Trek Checkpoint for 2021, 2027, 2026, 2025, 2024, 2023, 2022, 2020, and 2019.
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