Frame
Specialized M4 aluminum
Fork
FACT carbon monocoque, tapered steerer, 135mm hub spacing, open QR dropouts
Rims/Wheels
Specialized Stout XC 90, aluminum
Hubs
See rims/wheels
Spokes
14g stainless-steel
Tires
Specialized Ground Control Fat, 26 x 4.6
Crankset
Specialized Stout XC Pro, aluminum
Chainrings
28t
Rear Derailleur
SRAM X7
Rear Cogs
Custom Sunrace, 10-speed: 11-40
Shifters
SRAM X7
Handlebars
Specialized Stout, aluminum
Tape/Grips
Specialized Sip Grip
Stem
Specialized Stout XC, aluminum
Brake Levers
Tektro Gemini
Brakes
Tektro Gemini, hydraulic-disc
Saddle
Body Geometry Henge Sport
Seatpost
aluminum
Factory Description
Skinny tires are for the road; Specialized’s Fatboy is for everything else. This lightweight aluminum frame is mated to a FACT carbon fork on 4.6-inch Ground Control tires that devour everything in your path. The super-wide aluminum rims give you stability and durability to roll through the most root-filled trail like it’s butter. With SRAM X7 drivetrain components providing slick shifting on all-day adventures or snowy cruises, you’ll be sure you get the push you need when speed’s what you’re after. And, you can bring it all back down to earthly limits thanks to the Tektro Gemini hydraulic disc brakes. Trail? Sand? Snow? The Fatboy owns it all.