Fatboy Expert
Part No.:  

Fatboy Expert

Part No.:  65550
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Fatboy Expert
Overview
Technical Specifications
Geometry
All the fun of a fat bike with the performance of a Specialized. The Fatboy Expert combines a lightweight frame and fork with 4.6" Ground Control tyres to create a geometry similar to Specialized 29er geometry for nimble handling in the most extreme conditions.
  • Fully butted M4 Premium Aluminium frame w/ up to 5-inch tyre clearance is lightweight and stiff
  • Fully butted M4 Premium Aluminium frame w/ up to 5-inch tyre clearance is lightweight and stiff
  • SRAM X0 Type 2, 10-speed, medium cage derailleur for crisp and reliable shifting
  • Fully butted M4 Premium Aluminium frame w/ up to 5-inch tyre clearance is lightweight and stiff
  • Fat 26" disc, alloy single wall rims are designed to handle even the worst terrain
  • Fully butted M4 Premium Aluminium frame w/ up to 5-inch tyre clearance is lightweight and stiff
  • SRAM X0 Type 2, 10-speed, medium cage derailleur for crisp and reliable shifting

Technical Specifications

DRIVETRAIN
CHAIN KMC X10L, 10-speed, w/ reusable MissingLink
CRANKSET Custom e.thirteen, PF30, 100mm spindle, w/ BB
FRONT DERAILLEUR SRAM X7, 2x10, low direct mount
SHIFT LEVERS SRAM S-Series, Grip Shift, 10-speed
CASSETTE Sunrace, 10-speed, 11-36
CHAINRINGS Praxis, 36/22, alloy
REAR DERAILLEUR SRAM X0 Type 2, 10-speed, medium cage
WHEELS
FRONT HUB Specialized MTB Hi Lo disc, alloy, sealed cartridge bearings, QR, 32h
INNER TUBES Standard presta valve
SPOKES Stainless, butted, 2.0/1.8/2.0mm, black
RIMS Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h
FRONT TYRE Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6"
REAR TYRE Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6"
COCKPIT
SADDLE Body Geometry mountain, hollow Cr-Mo rails, 143mm
SEATPOST Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware
STEM Specialized Stout XC, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware
HANDLEBARS Specialized, double-butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm
GRIPS SRAM, S-Series Grip Shift, 92mm
Suspension
FORK Specialized FACT carbon, full monocoque, tapered steerer
BRAKES
FRONT BRAKE Shimano BR-M506, hydraulic disc, dual piston, resin pads
BRAKE LEVERS Shimano BR-M506, hydraulic disc, w/ reach adjust
REAR BRAKE Shimano BR-M506, hydraulic disc, dual piston, resin pads
ACCESSORIES
PEDALS Specialized Bennies, 6061 alloy body, sealed cartridge, 4.5mm removable pins
FRAMESET
HEADSET 1-1/8" upper, 1-1/2" lower, Campy style, integrated sealed cartridge bearings
SEAT BINDER Alloy, 34.9mm
FRAME Specialized M4 Premium Aluminium, fully-butted w/ smooth welds, tapered head tube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger

Geometry

Geometry Chart

Fatboy - Geometry

S M L XL
  S M L XL
Stem Length 60mm 60mm 70mm 70mm
Crank Length 170mm 175mm 175mm 175mm
Handle-Bar Width 750mm 750mm 750mm 750mm
Seat Tube Angle (Effective) 73° 73° 73° 73°
Reach 395mm 420mm 437mm 458mm
Stack 590mm 600mm 615mm 629mm
Chainstay Length 455mm 455mm 455mm 455mm
Bottom Bracket Drop 60mm 60mm 60mm 60mm
Head Tube Angle 70.5° 70.5° 70.5° 70.5°
Head Tube Length 110mm 120mm 135mm 150mm
Top Tube Length (Horizontal) 576mm 603mm 625mm 650mm
Seat Tube Length, Center to Top 394mm 445mm 483mm 533mm
Standover Height 757mm 793mm 820mm 849mm
Wheel Base 1083mm 1105mm 1128mm 1154mm
Seat Tube Angle (Actual) 73° 73° 73° 73°
Bottom Bracket Height 315mm 315mm 315mm 315mm
Seat-Post Length 100mm 400mm 400mm 400mm