Continental Conti Valve Extender (Pack of 2)

Dont buy the plastic extenders. These extenders will last.

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

Excellent quality. You have to unscrew the presta value off the tube then attach the valve extender. Just as easy to pump up the tires as it is with the regular presta valves. I accidentally ordered a size too big for the depth of my wheels but even so, the extenders still look great on the bike.

Great for continental tires

Go big go latex! Use these get less flats and go low pressure

Honestly, I shouldnt review these, because I never actually USED them. They are light and seem very well made. Others have reviewed them well. My problem is these require you to start with tubes with removable valve cores... simple enough, but where the heck do you get them? this turned into what I thought was a simple solution into... too complicated to race with argument. I gave up and bought long valve stem tubes to use with my 60mm carbon rims.

Work but they leak like crazy.

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.

Best valve extenders Ive ever used. Takes a little more work to install because you have to remove the existing valve core and put it in the extender, but worth the effort. Other extenders that dont have the valve core in them crack at the threads after a short life.

Just make sure you buy plumbers tape (about $2 for a roll). Dont trust the rubber washers to hold air in over the long-run -- plumbers table should, though. Although, this isnt specific to the Conti valve extenders -- all valve extenders of this type are like that. ALWAYS BUY PLUMBERS TAPE!