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 ...

Finally, also check you have a compatible pump or inflator. 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 ...

High-Pressure Capability: Reaches up to 160 psi, ideal for road and mountain bike tires ... Compatible with Presta, Schrader, and Dunlop valves without additional adapters. Ergonomic Design ...