Continental Conti Valve Extender (Pack of 2)

This product is just as described. Nothing to lose here. It will help you with most wheels.

Excellent quality and perfect for the job

I’m not sure what the issue is but these cause the valve to jam. I’m not sure if it’s by design but it’s problematic. This makes it difficult to let air out.

Received defective product

Exactly what was needed for the deeper Zipp rims. Removable valve core tubes and these extenders make everything so much easier. I wish you could buy different lengths in a set, but this was a huge improvement. 48mm valves on the tubes and 60mm extensions fit the 808 rear wheel well but are long on the 404 front wheel.

These are easy to put in and they look nice. Thank you.

Does work at all.

Does the job and it does it well. Needed to extend my 51mm Vittoria latex inner tube to fit my Easton EC90 wheelset and this was the perfect choice. Easy to use and install.

First off I want to point out that these didnt work for me as I thought they would have. I was setting up 50mm carbon rims, tubeless, forgetting the fact that I need the stems to be fastened to the wheel. These are not threaded to receive a holding nut and can easily be pushed into the rim causing air leakage. However, as a product these are a much better option than using extenders that screw over the presta core, where it is hard to check pressure with a standard gauge and needing to stick a piece of wire or spoke down the shaft the release air. The presta core screws right in to the stem allowing to easily achieve the a fore mentioned tasks. Definitely use a little Teflon tape on the threads before screwing into valve stem.

These work fine. No complaints. Far cheaper than what I could find locally.