2026
2026 Polygon Siskiu T T8 UDH
The 2026 Polygon Siskiu T T8 UDH sits at the aggressive end of the range for a trail bike, with a slacker head angle and a shorter rear center. Reach 440 to 505 mm, stack 604 to 636 mm. The Siskiu T T8 with UDH build comes with Shimano SLX M7100 shifting and Polygon MT6 wheels.
Source: polygonbikes.com. Checked .
Key facts
- Brand
- Polygon
- Model
- Siskiu T
- Model year
- 2026
- Frame
- T8 UDH
- Type
- Trail
- Geometry labels
- S, M, L, and XL
- Drivetrain
- Shimano SLX M7100
- Rear shock
- Fox Float
- Wheels
- Polygon MT6
- Geometry
- Complete for every size
- Source
- polygonbikes.com
- Checked
Geometry by size
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Reach(mm) | 440 | 465 | 485 | 505 |
| Stack(mm) | 604 | 609 | 622 | 636 |
| Head tube angle(°) | 64.5 | 64.5 | 64.5 | 64.5 |
| Seat tube angle(°) | 71.2 | 71.2 | 71.2 | 71.2 |
| Effective top tube(mm) | 568 | 595 | 619 | 644 |
| Chainstay length(mm) | 430 | 430 | 432 | 430 |
| Wheelbase(mm) | 1186 | 1214 | 1240 | 1267 |
| BB height(mm) | 337.5 | 337.5 | 337.5 | 337.5 |
| Standover(mm) | 704 | 705 | 711 | 723 |
| Seat tube length(mm) | 390 | 400 | 415 | 430 |
| Head tube length(mm) | 89 | 95 | 110 | 125 |
Stock build
17 parts
Frame
Suspension
Fox 34 Performance
Fox Float
Drivetrain
Wheels & Tires
Brakes
Shimano SM-RT54
Cockpit
Seatpost & Saddle
Linc XTENT
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Quick answers
- Which size or configuration labels have geometry for the 2026 Polygon Siskiu T T8 UDH?
- Geometry is listed for S, M, L, and XL.
- What are the reach and stack of the 2026 Polygon Siskiu T T8 UDH in size L?
- In size L, reach is 485 mm and stack is 622 mm.
- What is the head tube angle of the 2026 Polygon Siskiu T T8 UDH?
- The head tube angle is 64.5 degrees in every size.
- What does the 2026 Polygon Siskiu T T8 with UDH ship with?
- The stock build includes Polygon ALX Trail, Fox 34 Performance, Shimano SLX M7100, and Polygon MT6.
- Which years of the Polygon Siskiu T are on Quiver?
- Quiver has the Polygon Siskiu T for 2026 and 2027.
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