Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 26" -
Groupset X0, X7 -
Suspension Rigid -
Drivetrain 2 × 10 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
Specialized M4 Premium Aluminum, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger
Suspension Fork
Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing
Drivetrain
Rear Derailleur
SRAM X0 Type 2, 10-speed, medium cage
Front Derailleur
SRAM X7, 2x10, low direct mount
Shift Levers
SRAM S-Series, Grip Shift, 10-speed
Cassette
Sunrace, 10-speed, 11-36
Crank
Custom e.thirteen, TRS+, PF30, 100mm spindle, w/ BB, 104/64mm BCD spider
Bottom Bracket
PF30, 100mm, press-fit
Chain
KMC X10L, 10-speed, reusable Missing Link
Pedals
Specialized Bennies, 6061 alloy body, sealed cartridge, 4.5mm removable pins
Wheels
Front Hub
Specialized MTB Hi Lo disc, alloy, sealed cartridge bearings, 135mm wide, QR, 32h
Rims
Specialized Fatboy SL, alloy disc, single wall, 90mm wide, sleeve joint, hookless design, 32h
Spokes
Stainless, 2.0/1.8/2.0mm
Tires
Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6""
Brakes
Brakes
Shimano Deore BR-M506, hydraulic disc, dual piston, resin pads
Brake Levers
Shimano Deore BL-M506, hydraulic, w/ reach adjust
Cockpit
Stem
Specialized, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware
Handlebar
Specialized, low rise, double butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm
Grips
SRAM, S-Series Grip Shift, 92mm
Headset
1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings, split crown race, 3.8mm cone spacer
Seat
Saddle
Body Geometry mountain, hollow Cr-Mo rails, 143mm
Seatpost
Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.43 mm | 1.41 mm | 1.38 mm |
| Bottom Bracket Height | 315 mm | 315 mm | 315 mm | 315 mm |
| Front Center | 635 mm | 657 mm | 680 mm | 706 mm |
| Rake | 46 mm | 40 mm | 41 mm | 41 mm |
| Trail | 73 mm | 79 mm | 78 mm | 78 mm |
| Stack | 584 mm | 594 mm | 609 mm | 623 mm |
| Reach | 389 mm | 414 mm | 431 mm | 452 mm |
| Top Tube Length | 570 mm | 597 mm | 619 mm | 644 mm |
| Seat Tube Angle | 73 ° | 73 ° | 73 ° | 73 ° |
| Seat Tube Length | 394 mm | 445 mm | 483 mm | 533 mm |
| Head Tube Angle | 70.5 ° | 70.5 ° | 70.5 ° | 70.5 ° |
| Head Tube Length | 110 mm | 120 mm | 135 mm | 150 mm |
| Chainstay Length | 449 mm | 449 mm | 449 mm | 449 mm |
| Wheelbase | 1077 mm | 1099 mm | 1122 mm | 1148 mm |
| Bottom Bracket Drop | 60 mm | 60 mm | 60 mm | 60 mm |
| Standover Height | 751 mm | 787 mm | 814 mm | 843 mm |
| Wheels | 26" | 26" | 26" | 26" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
Model Overview
Fatboy Expert is a Specialized Fatboy model. Specialized launched 31 bikes of this model so far. Check out the entire range from 2015 of this model, by clicking this link.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Average price for Fatbike bikes
If you want an acceptable Fatbike bike you should know that the average price is 1743$. However, even if your budget is less than the average, you might still be able to get a top-quality Fatbike bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Overview of components
Fork material
Fatboy Expert has a carbon fork, so, its weight is considerably lighter than one made out of steel. However, they cost a bit more than steel forks.
Wheels
The Fatboy Expert 2015 bike is equipped with 26″ aluminum wheels when leaving the factory. The 26″ wheels are lighter than the 27.5 or 29″ wheels. However, they are less forgiving when riding over obstacles such as bumps and roots.
Brakes
For your safety, it is important to have quality breaks on your bike. Specialized Fatboy Expert has Hydraulic Disc brakes installed. These kinds of brakes are among the most popular models used on bikes. To sum up, your safety is in good hands.
Sizes
There are 4 sizes available for this model. Rider height can be anywhere between 158 cm – 199 cm (5.18 ft – 6.53 ft). In short, it won’t be difficult to find the right one for you.