Specialized Fatboy Comp Carbon

Name: Specialized Fatboy Comp Carbon
Brand: Specialized

2017 MountainFat bike Manufacturer page

Suspension: Rigid
Wheels: 26″
Drivetrain: 10 11–42t
Gear range: 382%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

14 of 19 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

FACT 10m, full carbon frame, 12x197mm thru-axle rear, internal cable routing, ISCG XC tabs, suspension corrected for 100mm of travel Not identified

Suspension

1 part

Fork

Carbon, 46mm offset, tapered steerer, 150mm axle spacing Not identified

Drivetrain

5 parts

Brakes

1 part

Brakes
- Shimano Deore

Wheels and tires

5 parts

Front hub
- Specialized
Rear hub

Stout XC, disc alloy, sealed cartridge bearings, 12x148mm thru-axle, 32h Not identified
Rims
- Specialized
Spokes

Stainless, butted, 2.0/1.8/2.0mm, black Not identified
Tires

Front: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.0", Rear: Ground Control Fat, Control casing, 120 TPI, Aramid folding bead, 2Bliss Ready, 26x4.0" Not identified

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 420mm

Stack 602mm

Wheelbase 1113mm

Head angle 70.5°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 26″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	395	420	437	458
Stackmm	602	602	617	632
Top tube lengthmm	579	604	626	651
Seat tube lengthmm	394	434	470	520
Head tube lengthmm	94	94	110	125
Head tube angle	70.5°	70.5°	70.5°	70.5°
Seat tube angle	73°	73°	73°	73°
Chainstay lengthmm	455	455	455	455
Wheelbasemm	1088	1113	1135	1161
Front centermm	640	665	687	713
Bottom bracket dropmm	60	60	60	60
Bottom bracket heightmm	307	307	307	307
Standover heightmm	738.5	752	778.3	807.5
Fork rakemm	47	47	47	47
Trailmm	80	80	80	80
Stack/reach ratio	1.52	1.43	1.41	1.38
Suspension and parts
Crank lengthmm	170	175	175	175
Handlebar widthmm	750	750	750	750
Stem lengthmm	60	60	75	75
Seatpost lengthmm	350	350	400	400

Not published by the manufacturer: Front travel, Rear travel, Stem angle and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 42

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Tire width: 4″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 26″

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2017 builds

Differences across 2017 builds
Specification	This bicycle Specialized Fatboy Comp Carbon	Specialized Fatboy	Specialized Fatboy SE
Frame
Frame material	Carbon	Aluminum	Aluminum
Fork material	Carbon	Carbon	Aluminum
Drivetrain
Largest sprocket	42	42	36
Front chainrings	Not informed	1	2
Smallest chainring	Not informed	28	28
Largest chainring	Not informed	28	28
Lowest gear	Not informed	17.3 in	20.2 in
Highest gear	Not informed	66.2 in	66.2 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Mechanical disc
Other specifications
Tire width	4″	4.6″	4.6″
Bottom bracket standard	Not informed	BSA	BB30