The Stans NoTubes Alloy Tubeless Valve Stems. Lightweight aluminum valves, half the weight of standard brass valves.
Removable Valve core to ease adding tubeless sealant.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
44mm - Black | Mfg PartNum: AS0150 |
44mm - Blue | Mfg PartNum: AS0180 |
55mm - Black | Mfg PartNum: AS0151 |
35mm - Black | Mfg PartNum: AS0149 |
I am relatively new to tubeless. Stans seemed to me to be the standard. However, when I tried to use my KOM Cycling injector system to check and inject sealant into my tires I discovered a real problem with these valve stems. They narrow near the bottom, so the injector tube could not extend into the tire. Attempting to inject sealant simply didn't work. Lezyne Tubeless valve stems, on the other hand, do allow the injector tube to fully extend into the tire. This KOM system allows you to remove, test, and reinject sealant into the tire without having to break the tire bead seal. I had to remove the Stans and replace them with the Lezyne.
