Continental Conti Valve Extender (Pack of 2)

I found this very easy to install when you follow the directions. Ive used the extender on two tubes. For both tubes, the fit seems correct however when attempting to pump up the tire I meet extreme resistance. Pressure gauge on the pump shows inaccurate results and makes adding air very difficult.

With the attached tool, these extensions are a breeze to install

I have a Dahon folder which came with deep rims and tubes with long, long valve stems. When I wanted to add sealer against thorns, I could not find tubes with removable presta valve cores that had a stem long enough to fit the rims. Their valves just barely peeked out from the rim with not enough room for a presta pump to fit. So I used these extenders to solve the problem. Now I can add sealer. These can be transferred to new tubes if necessary. Perfect solution. ***FOLLOWUP SEPT 10, 2016 *** SUBTRACTING TWO STARS FOR DELICATE CONSTRUCTION I had trouble with one of these extenders and had to order another set. The seal on the end (the white ring in the photo) broke off in one extender. The sealer I added had jammed this end and I could not add air to top off the pressure. I unscrewed the valve core from the outer end of the extender and pushed a wire down the tube to clear the lump of sealer. It held air OK that time. But the second time I topped off the pressure, the same thing happened and it would not take air. This time I unscrewed the entire extender, but the end with the white sealing washer was damaged, probably from the time I had unclogged the tube before. The end with the white washer broke off entirely, so the tube would no longer hold air even when I tried teflon plumber tape to the threads. THE END WITH THE WHITE WASHER SEAL IS EXTREMELY DELICATE AND WILL BREAK EASILY. I had to reorder a second set because once the sealer washer is broken it will NOT hold air. Perhaps it would if you were to glue this section to the original valve stem with something like Gorilla Glue, but then you could not remove the tube when replacing it (the extender is larger diameter than the rim hole). I would much rather these extenders be made from a more durable metal, brass or steel. So I took off two stars for how delicate these are and how vulnerable the essential seal is to breakage. The wall thickness of the sealing end is too thin for the alloy it is made from. Note the sealing washer fits over a reduced diameter tube at this crucial point. Otherwise these work well.

They work well!!

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.

Works great for an 808 size wheel when combined with a 80mm valve stem with RVC. No problems. Thank you!

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

Using to adapt through some deep wheels. I put a bit of teflon tape on the original threads where the adapter connects, and on the adapter threads where the valve core connects. Has been holding air for months just the same as the original valve.

Fit good

If you need valve extenders, these are the ones to get. Note that they do require removing the valve core, so be sure that your tires/tubes are compatible.