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

They leak at the base no matter what you do. After spending hours and hours trying to fit these valves (where other valve types would do), I took time to actually review all these 5 stars reviews and realized they are almost all fake. These valves are garbage. Invest few more bucks and get Stans.

Perfectas para mis ruedas

Great if youre trying to do the Gorilla tape method

They are inexpensive and they work.

Seals perfectly

Good for the price

It works. The little black o-rings seems useless.

Best Tubless valve stems at a Great price. The 40 mm length is perfect. Much better than the standard length. The Buyer gets you the items super fast as well.

Good

Arrived promptly with no surprises. What more could a customer ask for?