Why do my rims have 2 valve stems

When I went to fill up my tires I noticed that there were two valve stems why does it have two and which one do I fill up

Are you sure it's not a bead lock and a valve stem? Those two look pretty close to each other from a distance... 

What Monk said.

Could be tubliss?

Unless it has a Tubliss installed, then it would have two valve stems.

Check the air pressure in the two stems, if one is really high, like 100 psi, you probably have a tubliss

I'd guess it's the rim lock. Look up your specific bike tire and find out if it is tubeless, or it might be the rim lock.

Sent from my couch using the moble app

If they are both really valve stems the one that looks normal sized is the tubliss rude and the big one is the tire pressure. Inflate the small one to 100-100 psi and the big one to 6-12 psi.

Sent from my SM-G900T using ThumperTalk mobile app

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