Contrast 700 x 28-35c Road Bike Inner Tubes - Presta Valve (Pack of 5)

I bought five of these and the first one I used works well. The second one I installed today and it went flat immediately because it had a small pin hole in it out of the box. I patched it and will use it. Just odd that it had hole in it. Maybe someone returned it and the I bought it. 4 Stars.

These tubes seem to be better quality than most. I just have a "V" type of deep rim and they were a bit short for that. For a normal application they'll work fine.

I don't expect these to be miraculous. So far I've used one the front tire of my stationary bike, so is yet to rotate more than one turn. On the other hand, it has been on there for about a month and has not lost any error, so that is something.

They seem just as good or better than the ones I was getting at the local bike store... when the bike store actually had some to sell. Perhaps not chalked as much as I would like but they are a true 28-35c size not 18-23c repackaged. My tires are 35c so the mislabled 18-23c size sold elsewhere do not perform well in my tires.

These tubes are absolute junk. 3 out of 4 failures right out of the box, the seam splits. Too late to return but the last 2 went unused went into the garbage.

Amazing durability. I upgraded simultaneously with gatorskins. Haven’t had one flat yet after over 500 miles

Purchase these as a back up to Cary on rides I’m assuming they will work properly but have yet to actually need one

Good tubes. I use them for my road/cross/gravel bike and have no complaints.

A loud of rubbish every one off them have gone down with in a day or two

Excellent tube