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

Great tubes, nice stem!

GREAT value for people who ride lots of miles. they are dependable and easy to replace when the exception happens and if you ride a bike you will have flat tires.

no complaints, item arrived as advertised 🦆

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.

Tubes are proper fit, but one tube was defective and the seal around the stem blew after putting it under pressure. This made me have to change my flat twice on my 62 mile race.

Finally, I found the Presta removable core. I can inject Slim into the tube. Made in Germany. I hope it will last for a while.

I bought these based on the reviews, however they did not last long at all. I rode the bike after installing these tubes and I got there fine. This was a 3 mile commute. Once I went back, the tubes went flat at the 0.5 mile mark. I had to walk my bike home for 2.5 miles. This was frustrating.

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.