20×3 Bike Tube with Schrader Valve – Heavy Duty Butyl Rubber Inner Tube for

20×3 Bike Tube with Schrader Valve – Heavy Duty Butyl Rubber Inner Tube for Electric Bicycle, Ebike, Mountain Riding – Includes 2 Tire Levers. PERFECT FIT: 20×3.0 bike tube suitable for most fat tire bikes with 20″ tires and 3.0 wide, including e-bikes and mountain bikes (MTB), featuring a 32mm Schrader Valve.