Haven't had the need to use them as of this date.
Bought tube for 25-28cm along with Michelin 28cm tires. Previous tube was narrower and too thin and I had a lot of flats. This tube is sized better and doesn't need to stretch as much. No flats since I switched.
These are far superior to the ordinary ones I've been buying at REI.
Performed better than expected.
I like the valve stem and valve and the valve does not seem to bend.
I've been using these in 28 mm tires. And they are fine even though they are specified for up to 25mm. No flats in over 2k miles.
I run 27x1 1/4" tires on my daily commuter bike, a 1971 Schwinn Super Sport. I have had trouble with tubes failing from the stem tearing at the base, probably due to running 700c tubes on 27" rims. I have been riding with these for several weeks now without incident. I feel confident that these will not fail me some rainy morning when I'm running late to work, mainly because I trust Continental's sterling reputation.
Looks to be a high quality tube. Has threaded stem and lock ring
I use these tires for my road bike. I have purchased cheap tubes in the past and have paid the price for it. Continental tubes cost a bit more, but seem to hold up, help avoid pinch flats, have better valves and in general give confindence.
When they say "removable valve core" they mean "core outer gage of the exact same thread and diameter as the valve stem". have not managed to refill them without disconnecting the valve core and causing a decompression (sometimes with the fun side effect of shooting the damn core out) once, either with a threaded pump or even just unscrewing the valve cap. incredibly frustrating to use, regardless of tube quality.
Low puncture rate.
I've Continental rubes and tires for years - in my opinion, and based on my experience, they're bulletproof.
I wanted new inner tubes with my new Grand Prix 5000 tires. The old inner tubes were still good, but had gotten a little heavy from repeated refresh doses of Stans tire sealant. Why not start with everything new for just a few dollars more? Thats what I did. The quality and ease of installation of these tubes was clearly superior to the no-name brand I used to buy. Continentals products do cost more, but everything they make is of the highest quality, durability and performance. It was true 40 years ago when I was a young racer and its still true today.
My go to road tube. They�re lightweight and will actually hold air! Supple and comfortable to ride. I ride 8,000 to 10,000 miles per year.
I use these tubes for almost 10 years of my cycling life. Light, rolling well.
Light, but more reliable than latex, in my experience.
As long as I stay off glass and nails, these tubes have worked fine. I do find that keeping them inflated just below. The max works best for me.
I've come to expect quality in Continental products, having run my Bianchi road bike with GP 4000s tires for many years now. This is the first time I've gone with Conti tubes as well, and I'm glad I did. A cycling tour in New Zealand exposed us to some rough roads and more than our share of gravel. Punctures were the order of the day. The Conti tubes held up. Yes, we had one flat, but their frequency was way down for our group of 10, part of a larger group of 110 riders.
I've always bought this tube. Never received a bad one.
Appears to have identical high-quality when comparing to Conti race tubes made in Germany from a decade ago - the butyl, valves, fit, seam, etc. Great fit with 25mm Conti tire and standard Wolber rim. The missing yellow caps add a few seconds though.
