2018
2018 Specialized Stumpjumper Comp Alloy 29/6Fattie
The 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie sits at the upright end of the range for a trail bike. Reach 389 to 477 mm, stack 617 to 686 mm. The Stumpjumper Comp Alloy 29/6Fattie build comes with SRAM GX shifting and Specialized Butcher tires.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Stumpjumper
- Model year
- 2018
- Type
- Trail
- Geometry labels
- S, M, L, XL, and XXL
- Drivetrain
- SRAM GX
- Fork
- RockShox Reba RL
- Rear shock
- RockShox Monarch RT
- Geometry
- Some measurements unavailable
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| Reach(mm) | 389 | 417 | 435 | 461 | 477 |
| Stack(mm) | 617 | 617 | 645 | 663 | 686 |
| Head tube angle(°) | 67.5 | 67.5 | 67.5 | 67.5 | 67.5 |
| Seat tube angle(°) | 74 | 74 | 75 | 75 | 75 |
| Effective top tube(mm) | 551 | 582 | 611 | 647 | 674 |
| Chainstay length(mm) | 437 | 437 | 437 | 437 | 437 |
| Wheelbase(mm) | 1115 | 1143 | 1172 | 1206 | 1232 |
| BB drop(mm) | 36 | 36 | 36 | 36 | 36 |
| BB height(mm) | 338 | 338 | 338 | 338 | 338 |
| Standover(mm) | 750 | 757 | 766 | 776 | 778 |
| Seat tube length(mm) | 396 | 430 | 468 | 523 | 564 |
| Fork length(mm) | 551 | 551 | 551 | 551 | 551 |
| Head tube length(mm) | 125 | 145 | Not available | 95 | 95 |
Not available
Requested. Requests decide what we research next.
Stock build
14 parts
Suspension
Drivetrain
Wheels & Tires
Brakes
SRAM Guide R
Cockpit
Seatpost & Saddle
Keep your Stumpjumper Comp Alloy 29/6Fattie 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 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie?
- Geometry is listed for S, M, L, XL, and XXL.
- What are the reach and stack of the 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie in size L?
- In size L, reach is 435 mm and stack is 645 mm.
- What is the head tube angle of the 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie?
- The head tube angle is 67.5 degrees in every size.
- What does the 2018 Specialized Stumpjumper Comp Alloy 29/6Fattie ship with?
- The stock build includes RockShox Reba RL, SRAM GX, Specialized Butcher, and SRAM Guide R.
- Which years of the Specialized Stumpjumper are on Quiver?
- Quiver has the Specialized Stumpjumper for 2018, 2024, 2023, 2022, 2021, 2020, 2019, 2016, 2015, 2014, 2012, 2011, 2010, 2009, 2008, 2007, and 2006.
Know what is on every bike.
Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.
Explore the app
