2 Pack TPU Inner Tubes, 700C Ultralight Bike Inner Tube Compatible with 700 x 18-35C with 65mm/80mm Presta Valves, Bicycle Tire Tubes for Road Bike, Lightweight 40g

Upgraded Ultra Light Design --- Our bicycle inner tube is only about 40g/0.09lb, which is much smaller than traditional butyl rubber inner tubes. The friction of the bike tube is smaller, which can achieve maximum speed and performance, making cycling more flexible and agile, greatly reducing the burden of cycling. And it is easy to carry and reduces the burden of your luggage. Stronger Puncture Resistance --- The inner tube is made of green and environmentally friendly TPU material with excellent performance, tough TPU material makes the puncture resistance of the TPU inner tube about twice higher than that of ordinary butyl rubber inner tubes, which can greatly reduce the possibility of tire blowouts, enhance stability, and improve safety. Stronger Airtightness --- Adopting advanced metal presta valve technology, the airtightness is stronger, it can greatly reduce the frequency of inflation. At the same time, the valve has 3 lengths of 45mm, 65mm and 80mm for you to choose from. Please note: do not over inflate the inner tube during the first inflation, initiate with an initial inflation of 0.5 PSI. Compatible with Multiple Tire Sizes --- Our bike tire tube have super toughness and are designed specifically for 700C tires, they are compatible with tires of the same diameter but different widths: 18C/23C/25C/28C/30C/32C/35C, and can be widely used in various road bicycles. More Comfortable --- The ultra light design not only reduces the impact of uneven road surfaces, but also saves effort, making cycling more comfortable. Better puncture resistance brings more safety. And it is resistant to oil and water, and has stronger impact resistance. The installation is also very simple, very suitable for long-distance and long-term cyclists. ›See more product details ›See more product details