have A23 rims always been tubeless compatible?

[eddief]

if not, is there a way for me to tell if my older A23 rims will work with tubeless tires and sealant?

[kingpin75s]

They were not always tubeless compatible, although I am sure some have made the original "non-tubeless" ones work as well.

This shows the 2 different rim beds for Australian vs. USA made:

https://www.google.com/search?q=velocity+a23+tubeless+bed+or+no&source=lnms&tbm=isch&sa=X&ved=0ahUKEwj136jFtorlAhUEbq0KHb-LAYYQ_AUIEigC&biw=1341&bih=598#imgrc=PhjV_m0tywBMyM:&spf=1570460858892

The USA made ones are considered tubeless ready as I understand it.

Look for the more pronounced center channel per picture.

[mass_biker]

On a related topic - I have one of the "less wide" i.e. before "plus" sizing - Hed Ardennes wheels.

a) It is tubeless compatible?
b) Panaracer 28c seem to fit fine - would like to try 32c - too "lightbulb-y"?

Thanks

m_b

[kingpin75s]

On a related topic - I have one of the "less wide" i.e. before "plus" sizing - Hed Ardennes wheels.

a) It is tubeless compatible?
b) Panaracer 28c seem to fit fine - would like to try 32c - too "lightbulb-y"?

Thanks

m_b

My understanding is that the original 23mm rims were not tubeless compatible and that it was introduced as such on the plus rims.

32c will be just fine on a 23mm external rim.

People have been running fat road tires on Open Pros for years and years so it is not as big of a deal as is often made, IMHO.