2026
2026 Specialized Stumpjumper 15
The 2026 Specialized Stumpjumper 15 sits in the middle of the range for trail bikes, with a slacker head angle and a shorter rear center. Reach 400 to 525 mm, stack 611 to 671 mm. The Stumpjumper 15 S-Works build comes with Shimano XTR Di2 shifting and Roval Traverse SL II wheels.
Checked .
Key facts
- Brand
- Specialized
- Model
- Stumpjumper 15
- Model year
- 2026
- Type
- Trail
- Geometry labels
- S1, S2, S3, S4, S5, and S6
- Drivetrain
- Shimano XTR Di2
- Rear shock
- Fox Float X Factory
- Wheels
- Roval Traverse SL II
- Geometry
- Some measurements unavailable
- Checked
Geometry by size
| Measurement | S1 | S2 | S3 | S4 | S5 | S6 |
|---|---|---|---|---|---|---|
| Reach(mm) | 400 | 420 | 445 | 470 | 495 | 525 |
| Stack(mm) | 611 | 621 | 630 | 644 | 658 | 671 |
| Head tube angle(°) | 64 | 64 | 64 | 64 | 64 | 64 |
| Seat tube angle(°) | 77.7 | 76.5 | 76.5 | 76 | 76 | 76 |
| Effective top tube(mm) | 542 | 574 | 596 | 625 | 649 | 678 |
| Chainstay length(mm) | 430 | 432 | 435 | 435 | 445 | 445 |
| Wheelbase(mm) | 1153 | 1186 | 1217 | 1249 | 1290 | 1327 |
| BB drop(mm) | 38 | 35 | 35 | 35 | 35 | 35 |
| BB height(mm) | 337 | 340 | 340 | 340 | 340 | 340 |
| Standover(mm) | 738 | 751 | 745 | 745 | 745 | 751 |
| Seat tube length(mm) | 385 | 385 | 405 | 425 | 445 | 465 |
| Fork length(mm) | 561 | Not available | Not available | Not available | Not available | Not available |
| Head tube length(mm) | 95 | 100 | 110 | 125 | 140 | 155 |
✓Sources agree Not available
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Stock build
21 parts
Frame
Suspension
Fox 36 Float Factory
Fox Float X Factory
Drivetrain
Wheels & Tires
Brakes
Cockpit
Seatpost & Saddle
Fox Transfer NEO Factory
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✓Sources agreeMManufacturer
Quick answers
- Which size or configuration labels have geometry for the 2026 Specialized Stumpjumper 15?
- Geometry is listed for S1, S2, S3, S4, S5, and S6.
- What are the reach and stack of the 2026 Specialized Stumpjumper 15 in size S4?
- In size S4, reach is 470 mm and stack is 644 mm.
- What is the head tube angle of the 2026 Specialized Stumpjumper 15?
- The head tube angle is 64 degrees in every size.
- What does the 2026 Specialized Stumpjumper 15 S-Works ship with?
- The stock build includes Specialized FACT 11m, Fox 36 Float Factory, Shimano XTR M9250, and Roval Traverse SL II.
- Which years of the Specialized Stumpjumper 15 are on Quiver?
- Quiver has the Specialized Stumpjumper 15 for 2026 and 2025.
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