Fatboy SL
Part No.  

Fatboy SL

Part No.  
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Fatboy SL
Overview
Technical Specifications
Reviews
The smartest fat bike build you can buy. By combining our lightweight M4 alloy Fatboy frame with carbon where it really counts, we've delivered a bike that shaves considerable weight off the competition at a price that makes this accessible.
  • Fully butted M4 Premium Aluminum frame is lightweight and stiff
  • Specialized FACT carbon fork w/ 5-inch tire clearance for stiff handling
  • Specialized Ground Control 4.6-inch tires roll over anything
  • Race Face Next SL carbon crankset with SRAM XX1 1x11 components provides an incredibly light and efficient drivetrain
  • HED Big Deal Carbon rims for super light and stiff wheels that are tubeless compatible

Technical Specifications

DRIVETRAIN
CHAIN KMC X11L, 11-speed, w/ reusable MissingLink
CRANKSET Race Face Next SL, PF30 BB, 100mm spindle, 30T, spiderless
SHIFT LEVERS SRAM XX1, 11-speed, trigger
CASSETTE SRAM XX1, 11-speed, 10-42
REAR DERAILLEUR SRAM XX1, 11-speed, carbon cage
SUSPENSION
FORK Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing, open QR dropouts
WHEELS
FRONT HUB Specialized Stout XC 135, Hi Lo disc, alloy, sealed cartridge bearings, QR, 32h
REAR HUB Specialized Stout XC 190, 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 HED Big Deal, carbon, single wall, tubeless, 85mm wide, 32h
FRONT TIRE Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6""
REAR TIRE Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6""
COCKPIT
SADDLE Body Geometry Phenom Expert, hollow Ti rails, 143mm
SEATPOST S-Works FACT carbon, 20mm offset, 27.2mm
STEM Specialized Stout XC, 3D forged alloy, 4-bolt, 6-degree rise, anti-corriosion hardware
HANDLEBARS Specialized flat, carbon, 8-degree backsweep, 31.8mm
GRIPS Specialized Sip Grip, light lock-on, half-waffle, S/M: regular thickness, Others: XL
BRAKES
FRONT BRAKE Magura MT8, hydraulic disc, Hi Friction pad, carbon master cylinder, alloy caliper, Storm SL rotor
BRAKE LEVERS Magura MT8, carbon lever
REAR BRAKE Magura MT8, hydraulic disc, Hi Friction pad, carbon master cylinder, alloy caliper, Storm SL rotor
ACCESSORIES
PEDALS Alloy, 1 pc. body, 9/16"", w/ reflectors
FRAMESET
HEADSET 1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings
SEAT BINDER Alloy, 31.6mm
FRAME Specialized M4 Premium Aluminum, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger

Reviews