Custom e.thirteen, TRS+, PF30, 100mm spindle, w/ BB

Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing

Specialized M4 Premium Aluminum, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger

1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings, split crown race, 3.8mm cone spacer

All the fun of a fat bike with the performance of a Specialized. The Fatboy frameset is a lightweight yet agile M4 Premium Aluminum frame coupled with the new Specialized FACT carbon fork with plenty of clearance for fat tires. Ready to build up to your spec.

Specialized Fatboy Frameset

The Specialized Fatboy is celebrated for its versatility and performance across various conditions, from snow to sand, making it a standout in the fatbike category. Its design emphasizes stability and traction, with features like wide tires and a carbon fork enhancing ride quality. While it excels in challenging terrains, some reviews note its handling could be more nimble in tight spaces.

MSRP
Where to Buy	— $1 At
Category	Fat

Frame	Aluminum
	Carbon
Wheels
Wheel Size	26″



	e*thirteen TRS Plus
Drivetrain
Brand Site	specialized.com
Summary	The Specialized Fatboy Frameset is a 26″ aluminum frame fat frameset with modest components.

Frame	Specialized M4 Premium Aluminum, fully butted w/ smooth welds, tapered headtube, post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger BB Standard: PF30, Press Fit
Fork	Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing
Bottom Bracket	e.thirteen, PF30, included w/ crankset
Headset	1-1/8"" upper, 1-1/2"" lower, Campy style, integrated sealed cartridge bearings, split crown race, 3.8mm cone spacer