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ENVE Silca Valve Extenders
ENVE Silca Valve Extenders

ENVE Silca Valve Extenders

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ENVE + Silca Valve Stem Extender

Made for road, gravel and cyclocross rider who use any ENVE tubular or non-tubeless clincher, to ensure your valve stems are easily accessible and not buried inside the rim cavity.

  • The 34mm set is optimized for the SES 3.4 and SES 3.4 Disc.
  • The 45mm set is optimized for the SES 4.5 and SES 5.6 Disc.
  • The 75mm set is optimized for the SES 7.8 and SES 7.8 Disc.

ENVE recommends that the length of your tire/tube valve + the length of your extender exceeds the depth of the rim by at least 10mm.


B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

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Reviewed 1/3/2019
by B Kuehn
Competitive Racer
Bend, Or.
Overall Rating
High quality valve core extenders

I have used a number or different valve core extenders for deep section wheels, many of which are excellent. The Enve Silca extenders differ in that they are wrapped with a rubber end where they exit the rim. This appears to be a solution to the issue of the valve core extender having that annoying loose wobble which results in a clicking when the wheel rotates. The traditional solution is to wrap a thin layer of electricians tape around the extender before inserting it, the trick being to not make it too thick. While the Enve Silca end seemed a good solution I found that in the rims I was installing them in (tubular 88mm wheels w the extender installed on Vittoria Corsa Speed 23mm tires) the rubber bit was just a little too thick and worked it's way off while pushing the extender through the deep section rim. I imagine this problem may not be an issue on other wheels and or somewhat shallower rims. Otherwise they are great and I didn't find too many other core extenders of suitable length to work well with the 88mm wheels.

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