Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Specialized
2018 Specialized Fatboy
Previous used estimate
$566 - $583
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 Specialized Fatboy
12-month projected trend
7%
Direction and magnitude, not judgment
vs. category average
1%
Drops faster than category avg
Price over time - 2018 Specialized Fatboy
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Fatboy model years
2020$1,174 - $1,208▲ 107% vs. 2018
2019$1,313 - $1,351▲ 132% vs. 20182018$566 - $583Currently viewing
2017$1,964 - $2,021▲ 247% vs. 2018
2016$1,360 - $1,399▲ 140% vs. 2018
2015$1,164 - $1,197▲ 105% vs. 20182014$474 - $487▼ 16% vs. 2018
2009$752 - $774▲ 33% vs. 2018
2008$560 - $577▼ 1% vs. 20182000$148 - $153▼ 74% vs. 20181999$127 - $131▼ 78% vs. 2018Overview
About this bike
Going fat isn't just a fun way to ride—it's a ride revolution. The security and control that the wheel system, found on our Fatboy, provides is unparalleled. You get dramatically more traction, grip, and floatation than with traditional mountain tires, all without sacrificing much to climbing efficiency. The end result is easy to explain—you have way more fun. And to make sure of it, we built the Fatboy with a durable list of components that are low-maintenance and eager to perform season after season. Have more fun—go fat. - The frame features an M5 alloy construction that provides the ideal blend of efficiency and durability, while the geometry creates a roomy top tube and short chainstays for easy climbing and confident descending. - A FACT carbon fiber fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down. - The SRAM NX one-by groupset keeps things simple, and is ready to take on the trail for the long haul.
Specifications
- Subtype
- Fatbike
- Category
- Mountain
- Component Fork
- Specialized FACT carbon, 46mm offset, tapered steerer
- Component Size
- Small, Medium, Large, X-Large
- Component Stem
- Specialized Alloy, 3D forged, 4-bolt, 6-degree
- Product Family
- Fatboy
- Component Axles
- Front: 15x1150mm Rear: 197x12mm thru-axle
- Component Chain
- KMC X11, 11-speed, anti-corrosion coating, w/ MissingLink
- Component Color
- Gloss Rocket Red/Black/Acid Mint
- Component Frame
- Specialized M5 Aluminum, fully butted w/Smooth Welds, tapered head tube and seat tube, forged post mount 160mm disc dropouts, internal routing, forged bottom bracket shell
- Component Brakes
- SRAM Level T hydraulic disc, organic pads. Front: 200/180mm rotors; Rear: 180/160mm rotors
- Component Saddle
- Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
- Component Cassette
- SRAM NX, 11-speed, 11-42t
- Component Crankset
- Raceface Aeffect crank, BSA
- Component Shifters
- SRAM NX, trigger, 11-speed
- Component Handlebar
- Stout Pro Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm
- Component Seat Post
- Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm
- Component Chainrings
- 30T
- Component Front Tire
- Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6"
- Component Tape Grips
- Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
- Component Bottom Bracket
- Race Face PF30
- Component Rear Derailleur
- SRAM NX, long cage, 11-speed
- Crankset
- Raceface Aeffect crank, BSA
- Bottom Bracket
- Race Face PF30
- Chain
- KMC X11, 11-speed, anti-corrosion coating, w/ MissingLink
- Saddle
- Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
- Handlebar
- Stout Pro Riser, double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm
- Rear Derailleur
- SRAM NX, long cage, 11-speed
- Stem
- Specialized Alloy, 3D forged, 4-bolt, 6-degree
- Axles
- Front: 15x1150mm Rear: 197x12mm thru-axle
- Brakes
- SRAM Level T hydraulic disc, organic pads. Front: 200/180mm rotors; Rear: 180/160mm rotors
- Cassette
- SRAM NX, 11-speed, 11-42t
- Chainrings
- 30T
- Fork
- Specialized FACT carbon, 46mm offset, tapered steerer
- Frame
- Specialized M5 Aluminum, fully butted w/Smooth Welds, tapered head tube and seat tube, forged post mount 160mm disc dropouts, internal routing, forged bottom bracket shell
- Seat Post
- Specialized 2-bolt head, forged alloy, 8mm offset, micro-adjust, 30.9mm
- Shifters
- SRAM NX, trigger, 11-speed
- Tape/Grips
- Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
- Color
- Gloss Rocket Red/Black/Acid Mint
- Size
- X-Large
- Front Tire
- Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.6"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.