The Tubes have a seamless construction, with a mold-cured vulcanization, to ensure uniform roundness Size: 28" - 700x25-32mm Valve type: 42mm Presta Valve Contents: 4 Continental Inner Tubes ...

Most will cater for both Presta and Schrader valves, but it's better to be safe than sorry. Do check out our guide on bike inner tubes to help you navigate your choices. How can I stop getting ...

If your bike has Presta valves on its rims or tubes, you'll know that pumping the tires can be a fiddly business. The Zilch floor pump is claimed to address that problem, with head seals that don ...