Continental Conti Valve Extender (Pack of 2)

With the attached tool, these extensions are a breeze to install

great product

Doing what theyre made for, no issues would buy again. You need a removable presta valve to run these

Exactly what youd expect. They install easily, and with a couple wraps of Teflon tape they lose no more than 20 psi/week with some Michelin tires inflated to 85 psi.

Screws into Zipps tires easily and accepts the valve just as easy.

Look very nice and have nice sealer on the threads. Unfortunately the male part of the extender broke off inside of my tube, leaving me to call an UBER back to thr group ride start. Have had my other extenders for years with no problems, just wanted something new looking. Oh well.

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 perfectly with my 88mm wheels. I have 88mm carbon wheels with 80mm tubes. Adding these extenders gave me plenty of room to inflate my tire without the stem extending out to much.

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

These seem great in theory, but they only seem to be compatible with Continental valves where the valve itself screws out of the valve stem. Trying to mount these on a Vittoria tubular tire in a deep section carbon rim just depressed the valve and made me lose all the pressure, yet wouldnt even thread onto the valve.