Introducing the ultimate solution for your biking adventures: the 2-Pcs 20′ Ultralight TPU Fat Tire Tubes. Designed to fit perfectly with 20 x 4.0 and 20 x 4.50 bicycle tires, these tubes come equipped with AV Schrader valves and include two durable nylon rim strips. Whether you are a road cyclist or a mountain biking enthusiast, these tubes are compatible with various tire sizes, including 20X4.0, 20X4.1, 20X4.2, 20X4.3, 20X4.4, and 20X4.5 (ETRTO: 100-406/114-406).

Crafted from thermoplastic polyurethane (TPU), these inner tubes are not only lighter but also stronger than traditional butyl rubber tubes. In fact, they offer a remarkable weight reduction of up to 70%, leading to a significant decrease in rotational mass. This enhancement results in improved agility and handling, allowing for a more dynamic riding experience, especially on climbs.

One of the outstanding features of our TPU inner tubes is their compact nature. When folded, they are more than 50% smaller than conventional inner tubes, making them incredibly portable. This compactness helps you save valuable space, whether you’re packing for a ride or storing them in your car’s trunk.

By choosing our TPU tubes, you not only enhance your riding experience but also make an environmentally responsible choice. The TPU material is designed to be friendly to both the environment and the colorful outer tires, ensuring that your bike looks as good as it rides.

We stand by our product’s quality, offering a 100% satisfaction guarantee. If you encounter any issues within 90 days of purchase, simply provide us with evidence and relevant information, and we will respond promptly to ensure your satisfaction. Your feedback is invaluable to us as we strive to improve our products and services continuously.

As a note of caution, we advise against overinflating the TPU inner tube without proper assembly, as excessive air pressure could lead to irreversible damage. The TPU inner tube’s thickness is only between 0.2-0.3mm, which, while providing higher strength, still requires careful handling. It is essential to inflate the tube gently at first, ensuring proper fitting between the inner tube, outer tire, and rim before fully inflating.

Additionally, it’s important to note that high temperatures can adversely affect TPU. In rare instances, excessive heat from rim brakes can pose safety risks. Therefore, we strongly recommend using TPU inner tubes exclusively on bicycles equipped with disc brakes to ensure rider safety.

Upgrade your bike’s performance and sustainability with the 2-Pcs 20′ Ultralight TPU Fat Tire Tubes. Experience the difference in weight, handling, and overall ride quality while contributing to a greener planet.