Continental Conti Valve Extender (Pack of 2)

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.

work well and much better than the external valve extenders, just remember to use some white teflon tape on the threads to seal everything up well

Very good and light. I remove a start because I find annoying that they force us to buy 2 when many people have a disc in the back and 808 in the front e.g.

Dont waste your money and give yourself aggravation using any valve extenders that dnt have this feature of actually moving the valve. The ones that just screw on to the end of your valve and rely on pressure to open the valve are a royal pain in the butt compared to these guys. Never had a failure with this brand or its harder to fine equivalent from Zipp. Multiple failures with other extenders that close the valve or dont seal wells etc. Get these and give yourself some peace of mind. (Youll need to buy tubes with a removable valve core, which cost a couple bucks more...but youre riding Zipps or some other expensive wheel if you need these, so quit complaining about a couple bucks for a decent tube!). :-)

Great !!!

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.

Received defective product

Theyre great. I put plumbers tape on them as extra precaution, but Im not sure its necessary. I use sealant in my tubes and therefore buy tubes with removable cores for my deep dish rims. Anyway, these work great!

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

Dont buy the plastic extenders. These extenders will last.