The leather piston gasket is the heart of a SILCA pump. Cut in Milan from the same leather used for Italian handbags and sports car interiors, it gives a smooth, stiction-free stroke and keeps sealing when the barrel heats up.

Highlights

  • Full-grain leather, 2.50 mm thick
  • Hand-crafted in Milan on the same equipment since 1960
  • Smooth, zero-stiction pump stroke
  • Keeps sealing when the barrel is hot

Leather vs o-rings

Cheaper pumps use o-rings, but no o-ring matches the feel of a leather gasket. O-ring pumps can struggle to seal once the barrel is hot from inflating several wheels, which is why SILCA leather-gasket pumps are still common in the pro peloton.

Compatibility & fit

Choose by your pump's internal barrel diameter. The 19 mm #751 fits SILCA frame pumps with a 19 mm bore, including post-2015 Impero frame pumps and the Pocket Impero. The 28 mm #731 fits 28 mm bore SILCA pumps and is the washer SILCA has used in Pista pumps for more than 60 years. The 30 mm #741 fits 30 mm bore SILCA pumps, including the SuperPista Ultimate Hiro edition. Fitting and servicing are available as a separate Tune Cycles workshop service.

Options

SizeFits
19mm (#751)19 mm internal diameter SILCA frame pumps; post-2015 Impero frame pumps and Pocket Impero
28mm (#731)28 mm internal diameter SILCA pumps; SILCA Pista pumps (formerly part 73.1)
30mm (#741)30 mm internal diameter SILCA pumps, including SuperPista Ultimate Hiro edition (formerly part 74.1)
SILCA's Limited Warranty covers this item against manufacturer defects for 2 years. It is classed as a wear or consumable part, so normal wear and use-related degradation are not covered. For warranty support, return the product to Tune Cycles and we'll manage the claim with SILCA's Australian distributor.
  • Genuine SILCA spare
  • Full-grain leather, 2.50 mm thick
  • Hand-crafted in Milan, Italy
  • Three bore sizes
MaterialFull-grain leather
Thickness2.50 mm
Made inMilan, Italy
Options19mm (#751), 28mm (#731), 30mm (#741)
SKU ECH-P-SI-LEATHER-WASH
Brand SILCA
Shipping Weight 0.3000kg
Shipping Width 0.120m
Shipping Height 0.100m
Shipping Length 0.650m