You set out on the long-awaited Sunday ride with your mountain bike, racing bike, or trekking bike, only to realize that the tire pressure and the pressure of the mini pump you brought are too low. Pumping the tires at the nearby gas station with the usual pump for car tires? Good idea, if only your bike didn’t have a Dunlop or Presta valve. This dilemma is solved by our flexible, intelligent everyday helper with a streamlined design: compatible with all common valves, the valve adapter screws onto Dunlop or Presta valves and allows access to the powerful gas station pump thanks to its Schrader valve connection. The aluminum mini-tool, designed as a practical keychain, also includes an integrated valve wrench for loosening and tightening AV and SV valve inserts.