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.

Threading is WRONG at both ends

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.

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).

Came in super tiny resealable bag without the the little black tool in the second picture. Will have to source a valve remover tool to add to the kit

I used these to help clear my 80mm carbon wheelset. Its worked excellent so far, and they held up through the ironman races I did. No air leaks.

OK, so this is my second set (and third) of these continental valve extenders. Honestly, the third set is just a spare in the event that for some reason I need them. I have found that too much is better than not enough. I purchased the first set after I received my deep rim wheels from Flo (I dig these wheels and for the cost, the are quite nice). Flo sent me a set of Silca valve extenders, which broke during set up. I was really disappointed in them and became really disappointed that I couldnt use my wheels the day they came. I did a little research and ordered these. Install was quick and (even though Silca is just a one step process and this is three) this was an amazingly simple install. Rode these for IM Austin 70.3 and had no issues (except a nervous mistake prior to starting in which I flattened the tire by unscrewing the extender). I dont seem to have any air leaks, not any of significance anyway.

They work well!!

I finally figured out how to use these, sorry for my previous review, it was my fault for not asking.

Does its job well. It fits perfectly and holds air.