Build it the way you want it with the 2015 Specialized Fatboy Fat Bike Frameset. 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.
- Fully butted M4 Premium Aluminum frame w/ up to 5-inch tire clearance is lightweight and stiff
- Specialized FACT carbon fork w/ 5-inch tire clearance for stiff handling