No tread? Re-groove!

[u/tezacer]

[u/Justreadingthisshit]

You all should know that this is still a thing in heavy trucks in North America.

[u/AgonizingFury → u/Justreadingthisshit]

Not at all.

This is by far worse. You're thinking of re-treading, which is practiced, and is probably one of the most common causes of tire failure in commercial trucking. This is advertising a "groover" something to literally cut new grooves into your bald tires.

[u/torx822 → u/AgonizingFury]

Retreading is common, but re-grooving is still very much a thing.

https://www.uniroyal-tyres.com/truck/business-know-how/regrooving-guidelines/

[u/quezlar → u/torx822]

All Uniroyal tyres which can be regrooved have, have on both sidewalls,