Pump this tube up to use and it split along the seam, will not purchase again.

I bought 3 tubes (700x18-25mm, 60mm Presta) each of them last for 15 miles. Stay away from those tubes.

All holes between parts. (see attached photo)

I bought 3 tubes and have only used 2 so far. I had a flat on my ride today so put in a new tube and it immediately went flat. Upon inspection I determined there was a crack in the tube on a fold. I put in a second tube and fortunately it worked fine but one defective plus a wasted CO2 cartridge and took twice as long to do the repair. Hopefully this was just a fluke.

Probably OK if you have thin tires and are tired of leaks. but they are heavy and should not be advertised as racing tubes.

Just bought two of these tubes and installed one this morning. Pumped up the tire to 100 psi and when I came out this evening, the tire was flat. Pulled it from the wheel and saw that it had split down the seam near the valve. Split was a good 1+ inches long.

Opened a tube today after a flat. Spent forever trying to pump it up. Turns out this fresh tube was riddled with holes! Defective junk.

They are a little bit big but good enough. I totally recommend this tube!

I've put many miles on these tubes and their reliability has made them my go to. Can't go wrong with these.

These tubes hold the high pressure needed for road cycling,the are compact for easy carrying on your ride.

These are high quality tubes and definitely worth having a few spares in your saddle bag and garage.

Good tubes for a good price

I love these tubes, I’ve been riding them for years. Very dependable.

I bought 3, first day using one I got a nail on my tired, "Bad luck"
change it to my 2nd pair so far I've ridden 500+ miles on it!
Love it!

Some say the seams are bad and it seems that is wrong. I have used these many times and never an issue. They are a little thicker too, just a little added extra protection. Use them, like them, love them

Standard tube that holds air and keeps my tires rolling! Big fan of Continental.

Don't buy these online (from here) to be safe. I love these tubes and have run them for years but CC is selling bad product. A bad batch..... 3 of the 4 I bought blew in a week. LBS showed me how the seams were splitting and I was only loading them up to a pre-set pressure of 100 PSI. Total garbage. Never buying tubes online again....

Product was as described, arrived quickly, and the price was right.

Bought these while on sale for a killer deal. Good lightweight tubes that do their intended job with no issues.

I needed a tube that would work on my 28c tires and my 50mm rims. BOOM this tube does exactly that. Good weight, great quality control, no issues. I patch and reuse tubes so it is important to start with a good tube, to begin with. Stoked on Conti!

I purchased the 25-32 60mm