SILCA 731 Leather Piston Gasket (formerly 73.1) - SILCA | Silca gasket | gasket | bike gasket

SILCA 751 Leather Piston Gasket

Regular price$ 11.00

The heart and soul of SILCA. The 751 washer is the same washer used in all modern Impero Frame Pumps, and is crafted from the same leather as Italian handbags and sports car interiors.

• Fits 19mm internal diameter SILCA
frame pumps
• Made from finest full grain leather
• Compatible with post 2015 Impero Frame Pumps and Pocket Impero
• Produced by hand on the same equipment continuously since 1960
• 2.50mm thick leather
• Hand-crafted in Milan, Italy

Limited Warranty


Parts covered by SILCA Limited Warranty are considered to be subject to wear through normal use or are consumable subject to degradation through the course of their daily use.  SILCA guarantees them free from manufacturer defects for 2 years.

    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.