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.
• Full metal construction
• Can seal on as little as 10mm of valve
• Adjustable pre-load for custom fit
• Disc-wheel compatible - Must have valve access from both sides
• Threads into any Schrader chuck
SILCA SHIELD WARRANTY
We understand bad luck and unfortunate circumstances, and would like to help you out. SILCA-Shield is our exclusive warranty coverage for Ultimate Level products and is THE most comprehensive warranty in all of cycling.
25 Year Hard Parts Guarantee - You break any hard part, we'll replace or repair it.
This is not a typical 'manufacturers defect' but any failure of any hard part in regular use. For 25 years, 1 Year No Fault - No questions asked repair or replacement to correct functional damage regardless of cause. Extend this to 2 Years No Fault - No questions asked by registering your product within 60 days of purchase here.
SILCA Limited 2 year coverage for all rubber, leather and gauge parts.
 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.
Have this chuck on the Silca Viaggio travel pump, and so, had to purchase another to put on another pump that I have. The lever to secure the connection to the valve stem is quick and easy-- faster than the screw-on type (that isn't bad, but speed is a good thing). Pricey, but unquestionable quality for the price.
Reto K.
I recommend this product
Rated 5 out of 5 stars
3 months ago
Upgrade to my pista pump
Fantastic & quality product.
Good seal and easy to use.
Mark W.
Verified Buyer
I recommend this product
Rated 5 out of 5 stars
5 months ago
Slick Lever
Works great, locks up tight on the stem. Switching heads was maybe a minute.
