◈ Size: 20 x 4.0 fat tire. PSI range: 5-35 240kpa, 2.4 BAR. Sturdy rubber Sturdy rubber for extended tire life, tires are 10-0% quality tested, wear-resistant, strong grip and thick. ◈ Tires are specific bicycle tires designed for off-road riding. Suitable for bicycles, e-bikes, snowmobiles and mountain bikes. ◈ The open and aggressive tread design gives the tire excellent dirt penetration and mud removal. ◈ Brightly colored tires. make your bike look cooler ◈ Premium rubber material with wide tire volume for better control and less drag, and excellent puncture properties for beach, snow, rough terrain and street riding.