This type of electric bike has tires that are wider than 2.8-inches, often 4″ or 4.9″ wide! The increased surface area improves traction but also increases friction, drag, and noise. Some fat tires are knobby for off-road use and others are slick and smooth for cruising on-road. In general, fat tire electric bikes are very stable and comfortable. The air inside can squish to act as a shock absorber and be lowered to help the tire spread out and “float” over soft terrain. Fat bikes began as a niche product for traditional cyclists who wanted to ride in loamy, sandy, or packed snow conditions. Some fat tires can even be used with metal spikes for grip in slippery icy conditions. With the introduction of electric bike technology, the niche has become much more mainstream because motor systems more than offset the weight and drag of fat tires, making them more enjoyable for less athletic riders.