HIRO Side-Lever Locking Presta Chuck- Carbon Steel

99 reviews

What is it?

A locking Presta valve chuck that stays securely connected at 220+psi for road and track situations, allowing both hands to remain on the pump handle, even when inflating disc wheels.

Who's it for?

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. 

Why We Designed It | Product Specs | Getting Started

Why We Designed It:

Years ago while Josh was working with the Team CSC at the Dauphine Libere, 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 Josh set out to improve the design and make it available to cyclists everywhere.



  • Full metal construction, guaranteed for 25 years and covered by SILCAShield 
  • 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
  • Male Schrader thread fits into any Schrader chuck, or use SILCA Thread-On Schrader Adapter to fit to bare hose
  • Bullet-proof high-pressure, disc compatible chuck for high-pressure situations.

Getting Started:

The HIRO chuck is ready to use when removed from the package. If you would like to learn more about features, functions and maintenance of the HIRO chuck, please visit the SILCA resource center. 


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Customer Reviews
4.8 Based on 99 Reviews
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Filter Reviews:
Michael T.
United States United States
one handed pump no more

Gone are the days of pumping up my track disk wheels one-handed to 120psi. The Hiro Side-Lever LOCKING Presta Chuck-Carbon Steel is my savior.

Charles S.
United States United States
Pista Plus Floor Pump - chuck preference and a suggestion

I bought a Pista Plus Floor Pump - it's great ! However, I found the standard chuck that came with the pump hard to use, so I bought the HIRO - it's much easier to use for me. I wish there had been an option to purchase the HIRO chuck as an option on my initial purchase.

David R.
United States United States
Silka Hiro Presta chuck

Excellent presta chuck

Kyle B.

Eric A.
Hiro Presta Valve Adapter

The perfect solution for my TT rear-wheel disc, and for all my other Presta valve pump head usage. No other Presta valve adapter performs as fine as the Hiro. Highly recommended.

SILCA HIRO Side-Lever Locking Presta Chuck- Carbon Steel Review