More Compact, More Portable As a spare tyre for cycling, riders hope the inner tubes are more convenient and portable when riding out. The TPU inner tube is 78% smaller than traditional inner tubes. The small size does not take too much space, you can take more when cycling. Low Rolling Resistance, Easier Pedaling Compared with traditional inner tubes, EXAR TPU inner tubes have made innovations in improving riding performance and riding comfort. EXAR TPU inner tube is lighter and softer, which makes you more comfortable while cycling. Compared with the traditional rubber inner tube the rolling resistance is reduced by 20%, you can pedal more easily with higher speed and power. Anti-Aging, Longer Service Life Unlike the traditional rubber tube that is likely to age and mold over time, TPU has a more stable polymer structure, thus having a longer service life. Super long service life is very cost-effective, a must-have for you to go riding. Premium Quality and Performance EXAR TPU ultralight inner tube passed 8 professional tests during manufacturing. Even if the weight is only one-third of traditional rubber inner tube, the performance still exceeds it. The EXAR TPU inner tube is not afraid of the challenges brought by the environment and time, it will help you explore no matter the season.