ZUKKA Alloy Presta Valve Stem Kit: 40mm and 44mm Tubeless Valve Stems

SIULIN M.: Llego en tiempo, y Justo lo que se pidió

Mexico on Oct 13, 2022

Rob WingerRob Winger: Perhaps the best valves I've used. Secure connection with the rim so no leaks. My finicky portable pump has no issues getting a good seal on these. The top part of the valve cover is extremely effective as a valve core remover. Multiple air outlets inside the rim, so very unlikely to get clogged with sealant. And the red looks great with accent colors on my bike and rims. Would be a great value at twice this price. Get these!

United States on Aug 03, 2022

Cuitlahuac Plata Cruz: Compre 1 juego para los rines que tengo para mi bici de ruta y no he tenido problema. se ven bien y se instalaron bien y no he tenido falla con ellos a inflar las llantas.

Mexico on Jun 15, 2022

Arturo De Luna: It works well, sealled on the first try, after adding the tire sealant. I like all the extra holes, that it has on the inner side of the valve, makes inflation much faster. Love the color choices that the valves can be purchased on. The valve cap serves as a tool to remove the valve core, very practical. Good value.

United States on Mar 16, 2021

Alex: Not much to say, I used them for a tubeless conversion and they seem to work well. I slightly enlarged the holes on the rim and smoothed them out with fine sandpaper, to provide a better mating surface for the rubber seals.

United States on Dec 03, 2020

Sean S.: This tubeless presta valve works great. Comes with an o-ring also, to help seal from outside of the rim. The stem is a perfect length. Not too obtrusive and easy to attach my pump’s nozzle onto. The small tool is a nice to have item. Used to remove the core. This is how I put the sealant into my tires.

Color looks great too. ;-)

United States on Sep 04, 2019

jsuth: I like the colors on these. The only problem I had was that they didn't seal very well with the rubber grommet provided with them. I ended up putting the rubber ring on the inside rather than the outside of the rim and that did the trick.

Shipping dates were delayed over what was shown when ordering the product.

United States on Jul 16, 2019