Continental Conti Valve Extender (Pack of 2)

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

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.

Works really well to bring that short tube valve out far enough to actually put a pump on it!

I am sure you, like me, are thinking... do I really need this? I am also sure you, like me, learned that theres a specification on a tire tube that tells you the length of the presta stem. So I regret to inform you... yes its necessary if you, like me, bought tubes with too short of stems and realize it is not worth shipping the tubes back. Super easy to install. I had the Park Tool VC-1 tool but the included little wrench works fine. I used the included wrench to install the main cylinder. All hand tight and havent noticed any leakage. I am almost certain I can use them on the spare tube when the time comes (since I have 3 tubes but only two extenders).

These work great and its nice they come in various sizes to get the perfect look as well as fit for the wheels. No excess air leaks, if it does leak, it is not noticeable, at least no more than brand new out of the box latex tubes. Product is quality and price was also fair.

Easy to install but thats where the good part ends. The valve reciever end is thick and threaded and makes it difficult to clamp on many pumps. Gets clogged up easily with anti-puncture fluid, which makes changing tubes difficult because you cant deflate them all the way.

Works very well for my FLO wheels. Great for Deep dish wheels. Durability so far works very flawlessly. Put close to 1000 miles on them with no air leak. I recommend using Teflon tape to make a greater seal where it screws on. Recommended

Does work at all.

I expected them to fit a standard valve stem, but they are some strange small extenders. Length was fine, but I have standard valve stems. Not worth returning them.T

Just what I wanted. Needed 48mm removable valve core tubes to clear my 88mm Carbon wheelset. Done forget to use Teflon tape for added piece of mind.