Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Specialized
2015 Specialized Fatboy SL
Previous used estimate
$1,164 - $1,197
Actual value depends on condition, size, and local demand.
Value Guide market data · 2015 Specialized Fatboy SL
12-month projected trend
1%
Direction and magnitude, not judgment
vs. category average
1%
Drops faster than category avg
Price over time - 2015 Specialized Fatboy SL
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▲ 1% vs. 2015
2019$1,313 - $1,351▲ 13% vs. 2015
2018$1,955 - $2,011▲ 68% vs. 20152017$1,964 - $2,021▲ 69% vs. 2015
2016$1,360 - $1,399▲ 17% vs. 20152015$1,164 - $1,197Currently viewing2014$474 - $487▼ 59% vs. 2015
2009$752 - $774▼ 35% vs. 2015
2008$560 - $577▼ 52% vs. 20152000$148 - $153▼ 87% vs. 20151999$127 - $131▼ 89% vs. 2015Overview
About this bike
Specialized's Fatboy SL is a supermodel in the plus-sized world. You'll get caught drooling over the smooth welds and sweeping curves of the M4 alumium frame, and the beautifully smooth and simple FACT carbon fork. Where it really counts is the SL's giant pair of shoes—massive 4.6-inch Ground Control tires and super light HED carbon wheels that devour any terrain. The SL is dressed up with SRAM's top end XX1 1x11 drivetrain, an incredible Race Face Next SL carbon crankset and Magura's petite yet powerful MT8 hydraulic brakes. A Specialized carbon handlebar and seatpost complete the build. The Fatboy SL is the perfect combination of light and fat that's just begging to get out on the trails and shred.
Specifications
- Category
- Mountain
- Component Fork
- Specialized FACT carbon
- Component Hubs
- Specialized MTB disc, aluminum
- Component Stem
- Specialized 3D forged aluminum
- Product Family
- Fatboy
- Component Frame
- Specialized M4 butted aluminum
- Component Tires
- Specialized Ground Control, 26 x 4.6-inches
- Component Brakes
- Magura MT8 disc, Storm SL rotors
- Component Saddle
- Body Geometry Phenom Expert, Ti rails
- Component Cassette
- SRAM XX1, 11-speed, 11-42
- Component Crankset
- Race Face Next SL
- Component Seatpost
- Specialized FACT carbon
- Component Shifters
- SRAM XX1
- Component Handlebar
- Specialized flat, carbon
- Component Wheel Set
- HED Big Deal, carbon
- Component Chainrings
- 30T
- Component Tape Grips
- Specialized Sip Grip
- Component Brake Levers
- Magura MT8, carbon lever
- Component Rear Derailleur
- SRAM XX1
- Component Fork Brand Model
- Specialized FACT carbon
- Component Frame Construction
- Specialized M4 butted aluminum
- Frame Construction
- Specialized M4 butted aluminum
- Fork Brand & Model
- Specialized FACT carbon
- Hubs
- Specialized MTB disc, aluminum
- Tires
- Specialized Ground Control, 26 x 4.6-inches
- Crankset
- Race Face Next SL
- Seatpost
- Specialized FACT carbon
- Saddle
- Body Geometry Phenom Expert, Ti rails
- Handlebar
- Specialized flat, carbon
- Rear Derailleur
- SRAM XX1
- Stem
- Specialized 3D forged aluminum
- Brake Levers
- Magura MT8, carbon lever
- Brakes
- Magura MT8 disc, Storm SL rotors
- Cassette
- SRAM XX1, 11-speed, 11-42
- Chainrings
- 30T
- Fork
- Specialized FACT carbon
- Frame
- Specialized M4 butted aluminum
- Shifters
- SRAM XX1
- Tape/Grips
- Specialized Sip Grip
- Wheel Set
- HED Big Deal, carbon
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.