Continental4x Race 28 700 x 20-25c Road Bike 42mm Presta Inner Tubes,Black

These are just a saving grace. London road quality is so awful these are the most important thing to carry on a daily commute or any escape from the city on the bike. Fits brilliant, top quality, and functions just as you'd need.Oh and yes I will in fact always load the GCN video for putting an inner tube in - even if it is my 50th time doing so.

good price paid fast delivery

These were a repeat order of a brand with which I have confidence from previous experience. They are used on a turbo set-up rather than the road. On this occasion I found that one tube had a valve which had to be tightened unusually hard in order to achieve a seal. A second tube failed prematurely when a pin hole formed in the rubber after 5 hours use. It was not related to any feature I could find such as a protruding spoke or a spike in the tyre. Not overly happy but as these features were totally outside of my previous experience I will, for the time being, continue to use the brand.

Perfect. Have fitted two of them and have 2 spares for my bag.

I haven't adopted tubeless tyres yet so these were a great value package in case of puncture on a long ride. Haven't used any yet so can't comment on effectiveness.

These are sub standard out of the 4 I bought 3 have been unless and punctured in the same place near the valve I don’t think they aware punctures just crap around the valve

Quality is excellent

Excellent quality at a reasonable price