Great quality tube. They do have replaceable valve cores. Just be care to check occasionally they are tight.
Had slight leaks on first installation
Quick ship, good price!
These tubes are consistently good quality. They're durable, too.
These tubes combined with Conti GP4000 or Gatorskin tires make for a very reliable, flat-free system. Don't lower your tire inflation pressures! Use the recommended maximum on the tire and you won't get flats, especially pinches. There is no low-pressure movement! You also don't have to fill your tires as often. These tubes hold air well enough to go several days - but no further. Check them with a gauge so you catch slow leaks.
Great tubes
Removable valve stems are a bonus! These tubes are quality out of the box!
Continental you can always rely on to travel many miles with reliability.
I have been using these tubes for the last few years and seldom had a flat unless the tires were well worn.
High quality, fairly low weight, long lasting, what is not to love about these Conti tubes????
Im an avid cyclist and rely on products like this to get me thru my rides day in and out.
Good product, good price. Prompt delivery. Saves a trip to bike shop for a commodity.
This is hands-down my go-to road tube for training. Never had a bad tube out of the box. Very nice quality and reasonably light for the price. A great value!
Continental road tubes have served me well year after year. Consistent quality at a reasonable price.
Standard fair for basic biking needs - never had problems and you can never have too many
I purchased these Continental Racing tubes for my road bike because I needed a tube that would give me the confidence needed in my road race and they delivered just that, confidence!
I rolled across 200 miles of rural country roads and had ZERO issues with these Continental tubes on board!
Great, reliable tube, and I highly recommend them for your road bike.
Daily every day use. Light but not so light that a small bump in the road causes a pinch flat. The removable core is an added Bonus making tubless sealant much easier to install negating tire removal.
When using lezyne pumps with screw on valve, the valve cores come out after pumping the tire to pressure. Happened on multiple tubes with 2 different floor pumps and frame pump. All Lezyne pumps which I don't have problems with other brand tubes.
Dunno if its the new Conti GPs or these Conti tubes I bought in conjuction but wow, my rides a lot more supple than it used to be. Yeah, its probably the tires but a fresh set of tubes cant be a bad idea either. I like em.
Always good quality.always reliable!
