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Silca Spare Part #731 - Leather Piston Gasket
What is it? The 731 Leather gasket fits SILCA pumps with 28mm inner diameter.
Who's it for? The cyclist who appreciates a long lasting tool and is looking to bring their PISTA, PISTA PLUS and VIAGGIO pump back to like-new condition.
Why We Designed It: Since the 1960's all SILCA leather gaskets have come from the same leather converting house in the fashion district of Milan, Italy. For more than 5 decades the same supplier has cut these washers from the excess material left over from the production of exotic handbags, Italian luxury cars interiors, and high-fashion luggage. A small press is used to trim and pressure-form these leather washers into durable pressure gaskets. From a purely functional standpoint, inexpensive o-rings are most commonly used in this application, but no o-ring can match the smooth feel and zero-stiction action of a leather gasket. It is common today to find SILCA leather gasket pumps throughout the professional peloton (especially during the spring classics) as o-ring seal pumps struggle with heat and often are unable to seal once the pump barrel is hot from inflating more than a few wheels.
Specifications: Fits 28mm internal diameter SILCA pumps Made from finest quality full grain leather Produced by hand on the same equipment continuously since 1960 2.50mm thick leather Hand-crafted in Milan, Italy