After reading a few reviews, I was still very skeptical about these tubes. They cost 2-3 times more than regular tubes and some have said that they don't hold air that well. Here are my thoughts:
- I liked the way they feel. Very supple, and they seemed to hug the contours of my wheel when installing them (better than butyl tubes do)
- After pumping them up to 60 psi, I found that they lost 20 psi overnight. It's no big deal. I always pump my tires to my regular pressure, 100 psi, before every long ride
- At the beginning of the ride, my wheels felt somewhat heavier than usual. It may just be something that I imagined
- An hour into the ride, I felt like the wheels were at higher pressure. I know this happens, but I almost never notice it. But this time it did feel like I had a stiffer ride. I liked it!
I'm still not quite sure if these observations are more in my head than quantifiable differences. Mainly I wanted to rebuke the claim that these tubes are more prone to problems when installing them. There's also a feeling of quality in these tubes, from the packaging, talc, unusual color and clear cap.
Carefully mounted four times on two different rims, with partial low inflation and careful checking all around to be absolutely sure that there was no pinching anywhere. Each time, when pumping up and pressure reached about 100 psi, tube exploded. Then would patch hole and try again with different tire andor rim after checking for any sharp object or bump thru rim tape. Holes were always on the inside of the tube, but off center. Failure locations did not coincide with locations of grommet bumps or spoke hole edges. Rims were Mavic Open Pro and Kinlin 28mm deep, tires used were Vittoria Open Corsa, Forte Pro Plus, and Vredestein Fortezza Tricomp. No problems whatsoever using thin wall lightweight butyl tubes on identical applications.
NO, don't blame it on me. I am an expert bike mechanic, most likely been doing this since before you were born.
Also have had bad experiences with Challenge Criterium Open Tubulars which are exceptionally flat prone, especially on rear wheel, and have treads that will eventually start to peel off of the casings.
I have a High performance Lowracer style of bicycle and these tubes do everything I bought them for.They are one of the lightest tubes I could find, always important on a bike and they give a noticably smoother ride than butyl inner tubes which lets you go farther and faster for a given watt output.
These are light and add a small degree of comfort to your ride because they are more supple than butyl. Puncture resistance is on par with butyl tubes of similar thickness. The only real drawbacks are the high price and the need to check inflation more regularly as these do not hold air over long periods as well as butyl.