The Big Boat tire features a built-in puncture resistant Aramid layer, smooth-grooved tread that's ready for pavement, designed to handle the demands of e-bikes. Specifications Color Black Defined Color Black Designed for ebike Yes Flat Protection Tread ISO Diameter 406 / 20" BMX ISO Width (mm) 75 Labeled Size 20 x 3 TPI 60 Tire Bead Wire Tire Diameter 20" Tire Intended Use Road Tire Type Clincher