Regularly cleaning and oiling the chain will keep it functioning smoothly and prevent unnecessary wear and tear. Also, ensure your brakes are working properly and adjust them as needed. A fatbike (also called fat bike, fat tire, fat-tire bike, or snow bike) is an off-road bicycle with oversized tires, typically 3.8 in (97 mm) or larger and rims 2.16 in (55 mm) or wider. Your bike frame & fork are protected under our Lifetime Warranty policy. We launch the Volare disc to critical acclaim winning road.cc's frameset of the year, and re-imagine the Fugio as a go-anywhere, fat-tyred, drop bar machine, as well as adding a carbon hardtail for XC racing, in the form of the Mantle.