High-Quality Rubber Material: Different from ordinary inner tubes, we use 60% high butyl rubber. The air tightness of this high-quality rubber is 8 times that of natural rubber, and it is not easy to break due to temperature changes. The conventional sidewall thickness is 0.8~0.95 millimeter, but our sidewall thickness is 1.1~1.2 millimeter, which is thicker than the sidewall on the market and is more puncture resistant Various Sizes:29x1.75-2.3;F/V Presta Valve 48 millimeter; 29 means our bike tubes fit 29 wheel (pls kindly confirm that your bike tire is suitable before you buy), width between 1.75-2.3 inch tire. Standard 35 millimeter schrader valve suitable for most mtb inner tubes Vulcanized Tubes: Each of our inner tubes have passed a strict 100% quality control inspection. And all tubes are round cured to ensure uniform roundness and better reliability. After explosion-proof and inflation tests, our quality control can give you 100% peace of mind Design: The exquisite carton contains two inner tubes for easy replacement and storage Please note: All inner tubes need to be put into the outer tire before inflating, so that the outer tire will protect the inner tire from exploding. If you have any questions, please do not hesitate to contact us. BWSHLF will provide you with the most satisfactory solution

Too fast by car, too slow on foot, only by bike you won't miss the beautiful scenery. This is the philosophy we have been pursuing at BWSHLF:“Best Wishes for Life.” 

 

*Get to Know US*

BWSHLF was established in 1985 with a mature technical team and a modern factory. The company mainly produces bicycle related accessories, such as bicycle inner tubes, valves and so on. We are also always committed to developing new products and actively listening to every customer's suggestions to optimize the quality of our products and bring you a better life experience.

 

*Trustworthy*

We are determined to build a good customer relationship, and we hope that every customer who buys our products will trust us and support us. We will try our best to provide you with the best service. If you have any operation problems or product issues, please feel free to contact us by email. Wish you happy shopping at BWSHLF!