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How Does it Work?: The SILCA Presta Chuck and 242 Gasket

June 16, 2015

We receive a lot of questions about our chuck and how it operates.  Over the last 30 years, the market has become flooded with pump and chuck designs of various complexity and part count, some with levers that flip up, some flip down, others like our own 'Hiro' Side Lever chuck work unlike any other, and yet the classic SILCA Presta Chuck continues to remain a classic, a favorite of both bike shop and pro mechanic alike for it's simplicity and ultimate durability.  In  In the early days of the pneumatic tire, all pumps had hoses that threaded onto valves.  Early silca pumps were no different, with even the Impero frame pumps of the 1920's and 30's having a hose... Continue Reading →


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