i72 Tubeless Valve Stems 40mm Presta Pair - Brass Made with Core Remover Tool, Round Rubber Base with O-Ring for Better Sealing

Not much to report. I screwed these valves in, put some sealant into the bottom of the tire, seated it on the rim a little bit, compressor on, et voila, I am riding tubeless (with tubeless-ready wheels, of course). No leaks from the valves or anywhere else after 2 weeks.

Worked great

Great stems at a great price.

Quality was good and conveniently came with the core tool. My only problem was that the valve stems wouldnt seat completely when installed (WTB i19 wheels) as they were slightly too wide and the rubber too hard make an airtight seal, even when the nut was tightened with pliers.

Its been a month and holding good!

The valves are absolute garbage.. Wish I could leave no stars at all. They leaked, tried everything under the sun to make it work but they’re useless.. I would not never buy it again..

Easy to install and, so far at least, properly functioning, these valves were installed on wide rims for 2.8 width tires, using Gorilla Tape to seal the rims for tubeless conversion. No leakage, and no clogging, as yet; but its only been a week, so I cant yet comment on any long term experience with them.

Love the rubber o-ring that keeps the tool on where you need it! These worked great for my tubeless tire conversion

These are better than the Stans valve stems. The extra o ring seems to help seal the rim up from air leaks. They also seem physically more robust.

Used 1 in gorilla tape on rim. 3 oz of stans and these. Worked like a charm.