2021
2021 Jamis PORTAL A2
Reach 397 to 482 mm, stack 597 to 634 mm. The PORTAL A2 build comes with Vittoria Mazza 29 x 2.4” tires.
Source: bikecatalogs.com. Checked .
Key facts
- Brand
- Jamis
- Model
- PORTAL A2
- Model year
- 2021
- Geometry labels
- L/19", M/17", S/15.5", XL/21", and XS/14.5"
- Geometry
- Complete for every size
- Checked
Geometry by size
| Measurement | L/19" | M/17" | S/15.5" | XL/21" | XS/14.5" |
|---|---|---|---|---|---|
| Reach(mm) | 461 | 439 | 418 | 482 | 397 |
| Stack(mm) | 625 | 615 | 606 | 634 | 597 |
| Head tube angle(°) | 67.5 | 67.5 | 67.5 | 67.5 | 67.5 |
| Seat tube angle(°) | 74.5 | 74.5 | 74.5 | 74.5 | 74.5 |
| Effective top tube(mm) | 635 | 610 | 585 | 660 | 560 |
| Chainstay length(mm) | 437 | 437 | 437 | 437 | 437 |
| Wheelbase(mm) | 1198 | 1173 | 1148 | 1224 | 1122 |
| BB drop(mm) | 33 | 33 | 33 | 33 | 33 |
| Standover(mm) | 754 | 749 | 754 | 774 | 731 |
| Head tube length(mm) | 125 | 115 | 105 | 135 | 95 |
Stock build
14 parts
Suspension
Fox 34 Series Float 29” Rhythm
Drivetrain
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
WTB Volt
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Quick answers
- Which size or configuration labels have geometry for the 2021 Jamis PORTAL A2?
- Geometry is listed for L/19", M/17", S/15.5", XL/21", and XS/14.5".
- What are the reach and stack of the 2021 Jamis PORTAL A2 in size S/15.5"?
- In size S/15.5", reach is 418 mm and stack is 606 mm.
- What is the head tube angle of the 2021 Jamis PORTAL A2?
- The head tube angle is 67.5 degrees in every size.
- What does the 2021 Jamis PORTAL A2 ship with?
- The stock build includes Fox 34 Series Float 29” Rhythm, Shimano Deore, Vittoria Mazza 29 x 2.4”, and Shimano MT420 4-Piston Hydraulic Disc.
- Which years of the Jamis PORTAL A2 are on Quiver?
- Quiver has the Jamis PORTAL A2 for 2021, 2020, and 2019.
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