Stan's NoTubes Universal 35mm Tubeless MTB Valve Stems

I bought two sets of these valve stems. Purpose was to change two tubeless ready bike wheels to tubeless. One bike was a road, and the other a MTB. Neither rim set would seal around the valves. I finally took all four wheels to my local bike shop. Shop recommended a different brand they felt sealed much better. Tires are inflated, and staying inflated currently. On a positive note, when I contacted BTD to complain about both sets, they provided decent customer support.

I have used Stan's rims, sealant, rim strips and now their valve stems. Stan's tubeless products have always performed well and have set the standard that other companies follow. The competition is getting better at their game because of Stan's reputation, and that's good for all riders.

This is the first time I've tried tubeless, and I must say that the Stan's valves work flawlessly. The removable cores made it very easy to inject sealant. I've only ridden about 25 miles of trail so far, but they appear to be holding up just fine. No leaks. They really don't seem to be very fancy to justify the high price, but if they last, I suppose they're worth it. Biketiresdirect does often have the best price.

These work on rims with both schrader and presta valve holes, and so can convert a schrader rim to a tubeless wheel with a presta valve.

I've used a lot of different valve stems for tubeless over the last 14 years. Stans are the original and best. I've had cheap Chinese stems fail but not the Stans.

Works perfectly

Work fantastically on the first try. Highly recommended. Easy to use and reliable! You'll spend far more time wrestling with your tire than you will messing with these guys.

As usual a great product!!

Valve stem work great and fit the rim