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Specialized Fatboy Pro 2015 Fat 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.

All the fun of a fat bike with the performance of a Specialized. The Fatboy Pro combines a lightweight frame, RockShox Bluto fork, and 4.6" Ground Control tyres to create a geometry similar to Specialized 29er geometry for nimble handling in the most extreme conditions.

Key Features :
  • Fully butted M4 Premium Aluminium frame w/ up to 5-inch tyre clearance is lightweight and stiff
  • RockShox Bluto RL Solo Air spring shock w/ TurnKey damping for traction in all conditions
  • Fat 26" disc, alloy single wall rims are designed to handle even the worst terrain
  • Specialized Ground Control Fat 26x4.6" tyres roll over anything
  • Race Face Next SL crankset w/ 100mm spindle is built for power no matter the terrain
  • Shimano XT, hydraulic disc brakes w/ Ice Tech pads and rotors for max stopping power
  • SRAM X0, 11-speed derailleur w/ carbon cage for reliable and precise shifting


Frame Specialized M4 Premium Aluminium, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 170mm rear hub spacing, replaceable alloy derailleur hanger
Forks RockShox Bluto RL, Solo Air spring, TurnKey damping, tapered alloy steerer, external rebound adj., 32mm alloy stanchions w/ mag lowers, disc mount, QR 15mm thru-axle for 150mm
Headset 1-1/8" upper, 1-1/2" lower, integrated Campy style, sealed cartridge bearings, split crown race, 3.8mm cone spacer
Handlebars Specialized, mini rise, 7050 alloy, 8-backsweep, 6-upsweep, 10mm rise, 31.8mm
Stem Specialized, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware
Shifters 11 Speed SRAM X01,11-speed, trigger
Rear_Mech SRAM X01, 11-speed, carbon cage
Chainset Race Face Next SL, PF30, 100mm spindle, 30T, w/ BB
Chain KMC X11L, 11-speed, reusable Missing Link
Cassette SRAM X1, 11-speed, 11-42
Front_Brake Shimano XT, hydraulic disc, Ice Tech resin pads w/ fins, Ice Tech rotor
Rear_Brake Shimano XT, hydraulic disc, Ice Tech resin pads w/ fins, Ice Tech rotor
Rims Fat 26" disc, alloy single wall, pin joint, 32h, w/ Fatboy logo
Front_Hub Specialized Hi Lo disc, sealed cartridge bearings, 15mm thru-axle, 32h
Rear_Hub Specialized Hi Lo disc, alloy, sealed cartridge bearings, SRAM cassette, QR, 32h
Spokes Stainless, 2.0/1.8/2.0mm
Tyres Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6 FrontSpecialized Ground Control Fat, 120TPI, folding bead, 26x4.6 Rear
Seatpost Command Post BlackLite, alien head design, single bolt head, w/ remote adjust lever, 30.9mm, S: 100mm travel, M/L/XL: 125mm

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