TPI: 30; Inflate up to 20 I. Note: The package includes a bicycle tire, not the rim. Both front and rear wheels can be used. color:Black Material:rubber size:20 x 4.0 Inch Package Contents: 1 x bicycle tire Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Open and aggressive tread design for excellent soil penetration and mud removal Specifically designed for off-road riding, suitable for bicycles, electric bikes, snowmobiles, and mountain bikes Wide tire volume enhances control and reduces drag, made from premium rubber for excellent puncture resistance Ideal for various terrains including beach, snow, rough terrain, and street riding Carbon steel ball construction allows for easy folding without damage, facilitating convenient storage