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.
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High quality valve core extenders
by B Kuehn
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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