Continental Race 28 700x20-25c Bicycle Inner Tubes - 42mm Long Presta Valve - 2 Pack

Lightweight tires that are designed for performance and reliability. will purchase again!

I don't see a lot of variation in different manufacturers' inner tubes, but these are certainly as high quality as any I use. I like them specifically because I build old school wheels with traditional rims, so I don't need the longer valve stems that are common now. These have a 42 mm valve stem, which is plenty long enough for my needs and are actually better for me than longer stems because they reduce the chance of breaking the stem when I air up the tires.

These tire tubes work really well. Easy to install, hold air without issues, and have been super reliable on the road.

Reliable tube for my road bike. I've ridden approximately 100 miles in an urban environment with potholes and haven't had a flat yet.I had to purchase twice since my first order only had one tube. I had to reorder a new pair and return my single tube instead of receiving one. It was a little wasteful, but I received the two tubes in the end.

But continental quality is niceThey sent me 25-32 😪

I am new to replacing tires/inner tubes and didn't know it would be so hard to install (for my bike specifically). If you are buying this, don't forget to buy the inner tube as well! Replaced both tires for my bike since it popped. No issues so far.

Both tubes flatted with <1 mile. First one I put in, I only made it about 0.1 mile before my back tire went flat. I inspected the tube right after I flatted and it had a hole directly across from where the valve stem is. I changed it with an old tube that had a patch on it and it held for my 22 mile ride. After my ride, I wanted to replace the old patched tube with the other new tube (this purchase came with 2 tubes).I carefully put in the tube, not using any tools and being very careful not to pinch. Also, before putting in either of the tubes, I ran my fingers all along the inside of my continental gator skin tire to make sure there were no sharp objects embedded in the tire. And also ran my fingers along and inspected the rim tape to make sure it was all good. There were no issues. I put in the other tube and tire back on. Inflated it slowly, ensuring the bead locks on the tire were good anll the way anround, and it was holding. I put my bike on the rack, and the next morning went out and the back tire was flat. 0 miles on the second tube. I took the tube out to locate the hole… aired it up while holding it (the tube wasn’t touching anything). I didn’t pump the tube up very full, and the tube exploded while I was holding it. It hadn’t even touched anything. I’ve purchased plenty of Continental tubes over the years. Flats happen from time to time. But, this was the worst experience with tubes I’ve had. 0 for 2 in 0.1 mile of ride time.

Back when I first started biking, I would buy different brands of tires and would get a number of flats every season. Once I started buying these, that is no longer a problem. They are extremely tough and resistant to punctures. The last thing I want to be doing on a ride is fixing a flat when you’re out in the middle of nowhere.