ContinentalRace 28 700 x 20-25c Inner Tubes - Long Presta 80mm Valve (Pack of 2), Black

Bought as my new 23mm turbo trainer tyre required a thinner tube than in the original 28mm tyre. These were a quick and easy option and did the job.They do have an exceptionally long valve stem, clearly made for very deep rims. They do still work on my older more traditional depth rims though, the valve stem just sticks out a long way and looks a little daft. Not really an issue when the bike is permanently on a turbo trainer.

The inner tube works fine, but I do wish the valve were a little bit larger that way I could use it as a walking stick when I inevitably crash because of a flat tire. I hate wasting things, even when they’re broken!

Good qualityGood value for money

Bought for my grandson who was doing a triathlon. He had a repaired puncture and no way was I letting him go on those tyres! 2 triathlons later and still going strong!

I punctured the tyre the day after I placed the new one on. I thought I was just unlucky.. I put the second one in.. same result.Terrible quality, do not buy.

Beware! The valve core is a real problem on these long stems - if you screw on the pump (none of my clamp-on pumps fit so I have to use an old style screw-on pump), then unscrew again at the end, the valve core has a tendency to unscrew itself with the pump and lets all the air out! The inner itself is fine if you can just negotiate this one issue though.

Just the job

These are good and do the job well. Long air nozzle is a big help.