Are you guys using solid or hollow O-Rings in your two piece wheels?

Are you guys using solid or hollow O-Rings in your two piece wheels?

I use solid oem o-rings in my two piece wheels

Thank you, for the overwhelming response

solid oem o-rings: That's all you should need to see-OEM rings are solid-end of quest.

Solid. The hollow ones collapse with thicker bead tires and leak pretty badly unless you run way low pressures.