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 ...

That is, a pretty interesting bike pump called the Zilch ... Sold only as part of a complete floor pump or shop inflators, ...

As to which model to choose, it depends on the bike. For a racing bike you’ll want a pump with a small-diameter cylinder, e.g ...