Continental 42mm Presta Valve Tube, Black, 700 x 20-25cc
Those fancy new tires you bought aren’t worth much without a great set of inner tubes to keep them inflated. Put the Continental 26″ presta valve tubes in your deep profile rims to shed some grams and keep the air in your tires. Unitube system allows greater compatibility with more tires sizes. Seamless construction eliminates weak points, Mold-cured and vulcanized for uniform roundness and improved reliability at the valve stem insertion. Every tube must pass 100% quality control inspection 42mm Presta valve has a removable valve core.
- PREMIUM INNER TUBES – Preferred by champions and riders worldwide
- VULCANIZED TUBES- All Continental Tubes are seamless and mold cured to ensure uniform roundness and better reliability at the valve stem.
- QUALITY TESTED- Every Continental Tube passes a stringent 100% quality control inspection.
- UNITUBE- Continentals Unitube system allows greater compatibility with more tire sizes and less tubes.
- REMOVABLE VALVE CORES – Useful for adding extenders or using Revo Sealant.
I had to replace a flat several weeks ago, so I used this tube. Since then, I have placed maybe 350-400 miles on it, and so far I have had no problems. I put my road bike under some abuse (potholes, broken glass, rocks, etc.) and so far, so good. Note that I check my tire pressure before EVERY ride and make sure it’s 95-105 PSI. Also make sure that the threaded washer is screwed on tight against your bike’s rim, so when you’re trying to inflate the tube, you don’t accidentally jerk or push the…
What can I say…it is a tube and holds air. I did have 1 out of the 5 tubes I had here that already had a pinhole near the valve stem, but I can’t really do anything about it since there isn’t free return shipping. Plus, I doubt continental will do anything since there are a lot of stupid people that undoubtedly puncture their tubes while installing. I wonder if that isn’t what happened….as in maybe someone had a couple that they damaged and returned….oh well, I’ll just buy them locally…
Good tubes. High quality and a good value for the price. The stem is high quality and doesn’t bend easily like other brands. This is important to me if i need to fix a flat on a ride with a little hand pump. After reading some of the lower ratings for this product, I think there are a lot of people out there who do not know how to properly install a tube on a road tire or understand the importance of inflating to an appropriate pressure. The pressure rating on your tire isn’t just a suggestion…