2018
2018 Specialized Fatboy
The 2018 Specialized Fatboy sits at the aggressive end of the range for a fat bike, with a steeper head angle and a longer rear center. Reach 395 to 458 mm, stack 590 to 628 mm. The Fatboy build comes with SRAM NX shifting and Specialized Ground Control Fat tires.
Source: specialized.com. Checked .
Key facts
- Brand
- Specialized
- Model
- Fatboy
- Model year
- 2018
- Type
- Fat
- Geometry labels
- S, M, L, and XL
- Drivetrain
- Varies by build
- Geometry
- Complete for every size
- Source
- specialized.com
- Checked
Geometry by size
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Reach(mm) | 395 | 420 | 437 | 458 |
| Stack(mm) | 590 | 600 | 614 | 628 |
| Head tube angle(°) | 70.5 | 70.5 | 70.5 | 70.5 |
| Seat tube angle(°) | 73 | 73 | 73 | 73 |
| Effective top tube(mm) | 576 | 603 | 625 | 650 |
| Chainstay length(mm) | 455 | 455 | 455 | 455 |
| Wheelbase(mm) | 1083 | 1111 | 1133 | 1159 |
| BB drop(mm) | 60 | 60 | 60 | 60 |
| BB height(mm) | 316 | 316 | 316 | 316 |
| Standover(mm) | 754 | 786 | 812 | 840 |
| Seat tube length(mm) | 394 | 445 | 483 | 533 |
| Fork length(mm) | 467 | 467 | 467 | 467 |
| Head tube length(mm) | 110 | 120 | 135 | 150 |
Stock build
Fatboy
Drivetrain
Wheels & Tires
Brakes
SRAM Level T
Cockpit
Specialized Stout
Seatpost & Saddle
Keep your Fatboy 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
Fatboy S-Works
Drivetrain
Wheels & Tires
Brakes
SRAM Guide RS
Cockpit
Seatpost & Saddle
Keep your Fatboy S-Works 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 Fatboy?
- Geometry is listed for S, M, L, and XL.
- What are the reach and stack of the 2018 Specialized Fatboy in size L?
- In size L, reach is 437 mm and stack is 614 mm.
- What is the head tube angle of the 2018 Specialized Fatboy?
- The head tube angle is 70.5 degrees in every size.
- What does the 2018 Specialized Fatboy ship with?
- The stock build includes SRAM NX, Specialized Ground Control Fat, SRAM Level T, and Specialized Stout.
- Which years of the Specialized Fatboy are on Quiver?
- Quiver has the Specialized Fatboy for 2018, 2020, 2019, 2017, and 2015.
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