2026
2026 Transition Spire Carbon
The 2026 Transition Spire Carbon sits more aggressive than most enduro bikes, with a slacker head angle and a shorter rear center. Reach 425 to 530 mm, stack 624 to 651 mm. The Spire Carbon Eagle 90 build comes with SRAM Eagle 90 Transmission shifting and DT Swiss EX1700 SPLINE 30 wheels.
Source: transitionbikes.com. Checked .
Key facts
- Brand
- Transition
- Model
- Spire
- Model year
- 2026
- Frame
- Carbon
- Type
- Enduro
- Geometry labels
- S, M, L, XL, and XXL
- Drivetrain
- SRAM Eagle 90 Transmission
- Rear shock
- RockShox Vivid Ultimate
- Geometry
- Complete for every size
- Source
- transitionbikes.com
- Checked
Geometry by size
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Reach(mm) | 425 | 455 | 480 | 505 | 530 |
| Stack(mm) | 624 | 624 | 633 | 642 | 651 |
| Head tube angle(°) | 62.5 | 62.5 | 62.5 | 62.5 | 62.5 |
| Seat tube angle(°) | 79.1 | 78.3 | 77.6 | 77 | 76.7 |
| Effective top tube(mm) | 550 | 580 | 608 | 636 | 664 |
| Chainstay length(mm) | 448 | 448 | 448 | 454 | 454 |
| Wheelbase(mm) | 1229 | 1259 | 1289 | 1324 | 1354 |
| BB drop(mm) | 32 | 32 | 32 | 32 | 32 |
| BB height(mm) | 343 | 343 | 343 | 343 | 343 |
| Seat tube length(mm) | 360 | 390 | 430 | 460 | 490 |
| Head tube length(mm) | 100 | 100 | 110 | 120 | 130 |
Stock build
20 parts
Frame
Transition Spire
Suspension
RockShox Zeb Ultimate Charger 3 RC2
RockShox Vivid Ultimate
Drivetrain
SRAM Eagle AXS
SRAM GX Eagle Transmission
SRAM Eagle AXS
Wheels & Tires
DT Swiss EX1700 SPLINE 30
Schwalbe Magic Mary Radial
Schwalbe Albert Radial
Brakes
Cockpit
Seatpost & Saddle
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Quick answers
- Which size or configuration labels have geometry for the 2026 Transition Spire Carbon?
- Geometry is listed for S, M, L, XL, and XXL.
- What are the reach and stack of the 2026 Transition Spire Carbon in size L?
- In size L, reach is 480 mm and stack is 633 mm.
- What is the head tube angle of the 2026 Transition Spire Carbon?
- The head tube angle is 62.5 degrees in every size.
- What does the 2026 Transition Spire Carbon Eagle 90 ship with?
- The stock build includes Transition Spire, RockShox Zeb Ultimate Charger 3 RC2, SRAM Eagle AXS, and DT Swiss EX1700 SPLINE 30.
- Which years of the Transition Spire are on Quiver?
- Quiver has the Transition Spire for 2026.
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