Confezione 2 Valvole Schrader 20x4 Fat Tire Bike Tubi Interni per Bicicletta Elettrica E-Bike
20x4 Fat Tire Bike Inner Tubes - Schrader Valve. Unlike the standard 20x3.5 - 4.0 tubes, our specially crafted tubes provide a perfect width that prevents the all-too-common issues of popping and instability.