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Specialized Fatboy 2017 Fat Bike - Mountain Bike

What are the delivery costs?

We offer Free UK Mainland Delivery on all orders over £20. Products shipped to outlying UK regions are excluded from free shipping.

Standard delivery is normally 2 - 5 working days.

Please view our delivery page for full information on UK and international delivery costs.

Going fat isn't just a fun way to ride - it's a ride revolution. The security and control that the wheel system found on our Fatboy gives is unparalleled. You get dramatically more traction, grip, and floatation than with traditional mountain tyres, all without sacrificing much to climbing efficiency. The end result is easy to explain - you have way more fun. And to make sure of it, we built the Fatboy with a durable list of components that are low-maintenance and eager to perform season after season. Have more fun - go fat.

Key Features :

  • The frame features an M4 alloy construction that gives the ideal blend of efficiency and durability, while the geometry creates a roomy top tube and short chainstays for easy climbing and confident descending.

  • A FACT carbon fibre fork provides tons of compliance and absorbs chatter, while simultaneously keeping the overall weight of the bike down.

  • Our Stout XC 90 alloy rims have been laced to Stout XC hubs to form a wheelset that's dependable, rugged, and efficient. So whether you're trail riding or ploughing through the snow, these wheels will be the perfect mix of performance and strength.

  • 26x.4.6" Ground Control tyres help soak up bumps, while also giving a game-changing level of traction, control, and floatation for better handling out in the wild.

  • Our Stout XC Pro one-by crankset features a forged alloy construction that provides plenty of security from chain drop, while also leading the way for an efficient, lightweight, and simplified drivetrain with plenty of gear range for hard drives on the flats and climbs.


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
Forks Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing, open QR dropouts
Headset 1-1/8" upper, 1-1/2" lower, threadless, Campy style, cartridge bearings
Handlebars Specialized Stout, double-butted 6061 alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 31.8mm
Stem Specialized Stout XC, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware
Shifters 10 Speed SRAM X7, 10-speed, trigger
Rear_Mech SRAM X7 Type 2.1, 10-speed, long cage
Chainset Specialized Stout XC Pro, forged alloy, 30mm alloy spindle, 100mm spindle width, 28T, 76mm BCD spider
Bottom_Bracket Samox, PF30, sealed cartridge
Chain KMC X10L, 10-speed, w/ reusable MissingLink
Cassette Custom Sunrace, wide range, 10-speed, 11-40t
Front_Brake Tektro Gemini, hydraulic disc, resin pads, I-spec compatible
Rear_Brake Tektro Gemini, hydraulic disc, resin pads, I-spec compatible
Rims Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h
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
Spokes Stainless, 14g, black
Tyres Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6" FrontSpecialized Ground Control Fat, 120TPI, folding bead, 26x4.6" Rear
Seatpost Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware

Occasionally, without notice, manufacturers change product design and/or specifications.