2 Pack 20x4 Fat Tire Bike Inner Tubes with Schrader Valve, 20 x 4.0 Premium Butyl Rubber Inner Tube for 20 inch Ebike Electric Bicycle

Perfectly Fit: Our bicycle inner tubes fit 20 inches Fat Tire Bike Ebike Electric Bicycle. We designed the tube width specially for 20x4.0 Ebike. Others tube width fit for 20x3.5 - 4.0 bike. It is easily popped to use the tube with not enough width. The width of our inner tubes is more suitable and durable., Valve type & length: Schrader Valve Stem for easy inflation (Regular valves); 35mm (1.38 inches) with valve core cap. Wheel Size: 20 inches, Durable: Our Bicycle tubes are made of Premium butyl rubber, so it'll durable than average bicycle inner tubes., What You Get: 2 Pack 20x4" fat tire tubes