Continental Conti Valve Extender (Pack of 2)

These work fine. No complaints. Far cheaper than what I could find locally.

use plumbers tape to get a good seal. otherwise works great. Put on 88 and 60 deep rims

Works great with my carbon wheelset. Especially a good decision if you have a set of tubulars that dont have exchangeable stems.

Spendy, and I wish they came in black, but crucially, these worked, whereas the cheaper no-name brand did not.

Doesn’t leak and easy to install.

In addition to this extender I tried Bontrager and Origin 8 extenders and the Conti one is the best. It comes in lots of sizes, they don’t rattle, they are easy to use, solid and inexpensive. I just wish they came in black. End your search and just buy this.

Conti quality. Unlike other reviewers, I did not have any issues with getting them securely attached and with no leaking. Another brand required pipe dope to keep from leaking, these did not. I use them with Conti tubes, so maybe that’s the reason they work well. They do the job they were designed to do.

Threading is WRONG at both ends

Great !!!

This work great with deep dish carbon rims. The ridges on the tip also allow a good grip when your filling up with your presta valve pump. Make sure to put on pipe sealant teflon tape before screwing these on for a better seal. This is the 3rd set Ive bought. Also make sure to get the proper length so that you have room to place the pump on your valves stems. I tend to go with a little longer valve extender because I have a 60, an 88 and 100mm different deep rims.