Tubeless Valve O Ring Inside Or Outside

The aluminum body and o ring can give your valve stem extreme durability.

Tubeless valve o ring inside or outside.

In addition the o ring inside the locking nut of the valve seals the rim from the outside. Unless you have crappy sealant the valve hole should seal itself up. You can either use a simple elegant finish or a bright colour finish for that added bit of colour coordinated bling. We recommend doing this outside to avoid a mess in the shop.

On the other hand the base of the stem is rubber made. The o ring on the outside of the rim is thicker and the corresponding locknut has a larger recess. Valve caps are knurled to make it easier to tighten or loosen them while some metal caps feature hex head designs. Three different rubber o rings allow you to adapt the stylish muc off tubeless valve to different tl rim profiles for a perfect seal.

These will be my go to valves for tubeless. The valve stem fits for the tubeless tires that have 40mm 80mm length. If the valve cap is missing it is best to press the valve core momentarily to release a little air before checking or adding air pressure. Better quality than stan s imo and that s saying something.

You could also consider tubeless valve stems that include a small o ring under the locknut. One method of adding sealant is to pour it in before you bead up the tire. More info at our web. The thing that sets these valves apart is the tiny o ring that s inset within the threaded nut adding extra seal outside the rim.

On the inside the base has a raised center to prevent sealant from getting inside and clogging. Today s tubeless rims have spoke holes that require tubeless tape to make them airtight. Aluminium made 40mm length american classic tubeless valve is the best one to fit to mountain bike without rubber base. This also keeps the valve from wobbling loose.