Each set includes 2 premium 20x4.0” fat tires and 2 reinforced inner tubes, specifically designed for electric bikes such as Lectric, Himiway, RadRover, Addmotor, and Engwe, plus most 20x4.0-inch fat trikes. Riders love the tight fitment, smooth handling, and noticeable upgrade from stock tires. The deep, all-terrain tread pattern provides superior traction across pavement, gravel, and light trails, while thick sidewalls add durability and puncture resistance for longer life. The matching tubes ensure an airtight seal and a worry-free ride.