Challenge 700x29-38C 47.5mm Presta Seamless Latex CX Tube Red

This lightweight 700x29/38c Seamless Latex Tube Inner Tube with 47.5mm Presta valve from Challenge is designed for Cyclocross, gravel track or touring. It is most suited to high end tubular wheels due to their low rolling resistance and higher resistance to punctures. Please note that because Latex is more porous and gas permeable, a tyre with a latex tube should be checked for inflation pressure BEFORE EVERY RIDE!

Advantages and disadvantages of Latex tubesLatex inner tubes are more supple than normal butyl tubes. They adapt quickly to the tyre changing shape while cornering and rolling. This is because latex extends and expands 7 to 8 times its original size, butyl expands only about 1.5, which means latex is much, much more flexible, guaranteeing more speed, improving rolling resistance and comfort than a standard butyl tube.
Latex inner tubes weigh less than standard butyl tubes which means they can definitely save you some valuable grams. They also increase puncture protection; the latex stretches and deforms around the body which is trying to penetrate the tube instead of it trying to resist the body and shortly after being punctured through. The highly elastic latex material is much more difficult to puncture.
The disadvantage of latex lies in poor air retention. Latex is more porous and gas permeable. **A tyre with a latex tube should be checked for inflation pressure before every ride!**Installation of a latex tube is also not so easy for the inexperienced hand. It can be more easily prone to pinch flats if not installed properly. The suppleness of latex means it can find its way into the smallest of cracks and holes and push itself in between and pinch. On the other hand, if seated correctly in its cone, it can be extremely strong, reliable and a great added benefit.

• Made of superior, unique formula Latex
• The only Seamless ’one-piece’ latex inner tube on the market