If I'm using a pair of "fully sealed tubeless rims" do I need to use sealant?

I'm seeing some sites state that it is unnecessary.

This question is really spawned by the statement that sealant corrodes rims.

1 Answer 1


If the rim is tubeless (fully sealed) and the tire is fully tubeless then correct you do not need to use sealant.

Tubeless ready tire then you do need to use sealant.
A benefit of the sealant is to also repair small holes.
Fully tubeless is a heavier tire.
Tubeless ready with sealant is more common set up.

Some tubeless rim manufactures such as Stans recommend tape to protect from corrosion from the sealant.

  • Ahhh... So my rims are DT|Swiss Tricon R 1700s, but my tires are Atom Road Tubless tires which are just "Tubeless Ready", and they definitely don't hold air without sealant. Is there a list somewhere of actual fully tubeless tires? Jun 2, 2014 at 11:03
  • Look at the manufacturers web sites. If that was the answer then you can indicate so by checking it.
    – paparazzo
    Jun 2, 2014 at 13:17

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