The Hiro Chuck is a finely crafted tool for those obsessed with the details as well as the experience of cycling. For high-pressure Presta valve applications, there is no better chuck.
Specifications:
- Full metal construction, guaranteed for 25 years and covered by Silca Shield
- Can effectively seal on valve stems as short as 10mm!
- Uses SILCA 254 High-Tech Elastomer gasket
- Adjustable gasket pre-load allows for custom fit on any valve as well as compensation for gasket wear
- Bullet-proof high-pressure, disc compatible chuck for high-pressure situations.










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