That is, a pretty interesting bike pump called the Zilch ... and jerk your hand into the cassette teeth. What about Schrader valves? Zilch works with Schrader valves, but you must use one of ...

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 ...