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Continental 42mm Presta Valve Tube, Black, 700 x 20-25cc
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- 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.
This item is available because of the Add-on program
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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.
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Something I wish I would have known before I went through like 6 tubes for one tire is when you're putting the tire bead back on that very last couple of inches is extremely hard to get onto the rim. But whatever you do, try NOT to user tire levers here! That's how I had so many punctures in the same spot. Instead, squeeze the tire from both the halfway points on each side and keep squeezing and going up. This creates some slack in the last couple of inches to which point you can mount the tire bead onto the tire BY HAND.
Finely crafted Presta valve. Even the retainer nut is above par.
Though sold for 20-25c; I find these work fine with 700x28c.
It looked nice and flashy for a tube but I guess I'll go to the corner store to buy one next time. Maybe it was old or just bad luck but I don't see myself buying this brand again.
A bit more expensive than others (especially bike store sale tubes) but have never had a bad one out of the box. If better than other (non slime or super thick) tubes, hard to say. Have gone thousands of miles without a flat with them and then several in a row. Seems no tube will survive a goat head in the side wall or a direct hit with a boulder doing 20. Funny how flats seem to come in series of 3.
PS: Amazon price can easily vary by several dollars each. Spouse puts them in the shopping cart to watch price before he runs out.
The only thing that surprised me was that the valve stem is in two parts... one part of the threaded tube connects to the tube itself (as you'd expect) and there's a second threaded tube that slides into the first tube I just mentioned. Sometimes, when unscrewing the black dust cap, you can accidentally unscrew this secondary tube, and totally deflate the tire. As long as you avoid doing that, you're good.
These tubes have worked extremely well for me so far.