Fatboy Chopper
Part No.  

Fatboy Chopper

Part No.  
Fatboy Chopper
Technical Specifications
BUILT FOR THOSE WHO CARE more about showroom good looks than the Tour de France, this big boy is designed with fat tires, fat fenders, a wide, low riding saddle and all the plush detail you'd expect from a Hog-inspired cruiser bike.
  • The laid-back Fat Boy Moto frame is constructed of our A1 Premium Aluminum, with a Transform top tube, internal brake cable routing, and an integrated center-stand mount for a clean look and absolute style.
  • The Fat Boy A1 Premium Aluminum double-clamp fork is disc brake only and designed for chopper-specific strength.
  • Avid's BB5 mechanical disc brakes, paired with 8-inch G2 Clean Sweep rotors, provide sure and steady stopping power, whenever you need it.
  • The Fat Boy wheelset features our A1 Moto front and rear hubs that are forged and CNC machined for strength and a clean look, sealed cartridge bearings provide smooth-rolling, trouble-free performance, the wide Fat Boy 24x3.5-inch tires complete the moto look.
  • The moto-inspired Fat Boy Chopper saddle, with integrated post, is big and plush.

Technical Specifications

Technical Specifications

CHAIN KMC KOOL K710SL, 1/2"" x 1/8""
BOTTOM BRACKET Threaded cup, 4x cartridge bearing w/ Cr-Mo spindle
CRANKSET Specialized Tubular Cr-Mo Moto, 3pc.
CASSETTE Shimano MX-30, single speed, 18t
CHAINRINGS CNC'd 6061-T6, 42t star design
FORK Fat Boy A1 Premium Aluminum double clamp, forged dropouts and disc mount
FRONT HUB Specialized Fat Boy A1 Moto, Forged and CNC w/ sealed cartridge bearings and 10mm Cr-Mo axle
REAR HUB Specialized Fat Boy A1 Moto, Forged and CNC w/ sealed cartridge bearings and 10mm Cr-Mo axle
INNER TUBES Specialized schraeder valve
SPOKES 2.8mm (9g) stainless Fat Boy Moto Spoke
FRONT TIRE Specialized Fat Boy, 24x3.5""
RIMS Fat Boy A1, 24 x 6"" rear, 24 x 3"" front
REAR TIRE Specialized Fat Boy, 24x3.5""
SADDLE Fat Boy Chopper w/ integrated post
SEATPOST Fat Boy Cr-Mo 30.9, integrated w/ saddle
STEM Fat Boy A1 Premium Aluminum, 31.8mm clamp, integrated w/ upper fork clamp
HANDLEBARS Fat Boy Cruiser, A1 premium Aluminum, 31.8 mm, 700mm wide
GRIPS Specialized Fat Boy, Kraton
FRONT BRAKE Avid BB5, mechanical disc, 8"" G2 Clean Sweep rotor
BRAKE LEVERS Tektro alloy 4 finger w/ ball end
REAR BRAKE Avid BB5, mechanical disc, 8"" G2 Clean Sweep rotor
PEDALS Specialized alloy platform, 9/16""
HEADSET 1-1/8"" threadless, integrated
SEAT BINDER Specialized alloy w/ QR
FRAME Specialized A1 Premium Aluminum, integrated headset, transform TT w/ internal brake cable routing, ISCG BB shell, forged dropouts w/ disc mount, 24x6"" wheel-specific, integrated centerstand mount


Geometry Chart

- Geometry

Top Tube Length (Actual) 660mm
Top Tube Length (Horizontal) 822mm
Crank Length 175mm
Seatpost Length 350mm
Head Tube Angle - Low Setting 57°
Standover Height 723mm
Head Tube Height 188mm
Wheel Base 1390mm
Seat Tube Angle (Actual) - Low Setting 51°
Chainstay Length 630mm
Seat Tube Length - Center to Top 463mm
Bottom Bracket Height - Low Setting 306mm