Silca Hiro Side Lever Locking Presta Chuck Leaking chucks are a thing of the past with the HIRO locking chuck. Use it on short valves, disc wheels and any other Presta valve you can throw at it. Just a great piece of equipment!Adjustable: Adjustable gasket pre-load to customize fit and account for wearLocking Chuck: Locking lever fits in disc wheels and has a secure hold up to 300psi Replaceable gasket: SILCA #254 red gasket...a little SILCA history; Years ago while Josh was working with a pro team at the Dauphine Libere stage race, he noticed one of their mechanics using the most amazing little chuck to manage the disc wheel inflation. Unlike anything he had seen before, it was all metal and used a 'lollipop' lever on the side to lock onto the valve stems in disc wheels. The mechanic explained that these were made in Japan and were coveted by all the Euro-Pro mechanics due to their scarcity. So SILCA set out to improve the design and make it available to cyclists everywhere. FEATURESFull metal constructionAbility to seal connection on as little as 10mm of valveAdjustable pre-load for custom fitDisc-wheel compatibleThreads into any Schrader chuck
