CST 20×4.0 Inner Tube for Fat Tire Bikes – Fits Fiido M1 Pro, Engwe EP-2 Pro, Bezior XF200 – Schrader Valve

Description

CST 20×4.0 Fat Tire Inner Tube – Durable Tube for E-Bikes and Fat Bikes

The CST 20×4.0 inner tube is a high-quality replacement for fat tire bicycles and e-bikes with 20-inch wheels and 4.0-inch wide tires. It uses durable butyl rubber, which provides excellent air retention and strong resistance to punctures. As a result, you enjoy long-lasting and reliable performance on every ride.

In addition, the Schrader valve works with most standard bike pumps, so inflating and maintaining the tube is quick and convenient.

Key Features

• Size: 20 x 4.0 inches

• Material: Butyl rubber for durability and air retention

• Valve Type: Schrader valve (car-type valve)

• Use Case: Perfect for fat tire bikes and e-bikes on snow, sand, gravel, or off-road trails

Compatible With

The tube fits a wide range of fat tire bicycles and e-bikes. For example:

• Fiido M1 Pro – Folding electric mountain bike with 20×4.0 CST tires

• Engwe EP-2 Pro – Popular e-bike with 20×4.0-inch tires

• Rad Power Bikes (RadRunner, RadMini) – E-bikes with fat tires

• Coswheel T20 – Urban fat e-bike

• Bezior XF200 – Full-suspension e-bike with 20×4.0 wheels

• Bezior XF001 – Retro city e-bike with fat tires

• Mongoose Fat Bikes – Select models with 20×4.0 tires

Installation Tips

First, deflate and clean the tire completely. Next, insert the tube carefully, avoiding twists or pinches. Inflate slowly and make sure the tube sits evenly inside the tire. This method prevents flats and improves comfort, stability, and safety.