Frame
Specialized M4 butted aluminum
Fork
FACT carbon monocoque, tapered steerer
Rims/Wheels
Specialized Fatboy SL aluminum
Hubs
Specialized MTB disc, aluminum
Spokes
14g stainless-steel
Tires
Specialized Ground Control, 26 x 4.6
Crankset
Custom E.Thirteen, 2-piece
Chainrings
36/22
Front Derailleur
SRAM X7
Rear Derailleur
SRAM X0 Type 2
Rear Cogs
Sunrace, 10-speed: 11-36
Shifters
SRAM Grip Shift
Handlebars
Specialized mini riser, aluminum
Tape/Grips
SRAM
Stem
Specialized 3D forged aluminum
Brake Levers
Shimano Deore
Brakes
Shimano Deore hydraulic disc, 7/6-inch rotors
Pedals
Specialized Bennies aluminum
Saddle
Body Geometry Henge SL
Seatpost
Specialized aluminum
Factory Description
Specialized’s Fatboy Expert has a hearty appetite for any kind of terrain you can serve up. This trail-eating champ is built around a lightweight aluminum frame and vibration-quieting carbon fork, but the real stomach of this monster takes the form of the 4.8-inch Ground Control tires that give you low-pressure grip on any terrain. They’re mated to wide aluminum rims that can take a beating and give you stability even on the loosest terrain. While you’re eyeing new and offbeat places to roll your Fatboy, you can count on SRAM X0 and X7 drivetrain components to get you there quickly. When it’s time to slow it all down and take in the scenery, Shimano Deore brakes are on the case. Sand? Snow? Mud? The Fatboy has an appetite for it all, so feed the beast!