Salsa's Beargrease Carbon Frameset pulls out all the stops so you can push the limits over snow, sand, mud and any other previously unrideable surface. The Bear's heart is an amazingly lightweight, efficient carbon frame designed to give you the stability you want from a fat bike with the nimbleness of a cross-country bike. The tapered carbon Salsa Makwa fork with a 15mm thru-axle ensure precise steering, and both the frame and fork accommodate tires up to 4-inches wide for tons of flotation. Build this beauty with your favorite wheels and components and leave a fresh track.