A nyone who’s ever worked in a bike shop can agree that teaching new riders how to use a Presta valve is not always easy. Between the actual operation of the valve and the pump, there’s the ...

As a result of all this, the valve head is a different shape, which means that a Schrader valve and Presta valve need different pump attachments - a wider attachment for Schrader, ...

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 ...