Beargrease is our fat tire bike built to go faster than you knew fat tire bikes could go. The super-light frame and fork and the sure-footed rollover of 27.5 x 4.0 wheels and tires cover challenging terrain quickly. Versatile frame and fork mounts let you carry everything you need for the backcountry. Test yourself in a snowy endurance race or pack your camping gear and embark on a long-distance overnight bike trip