What will cause a tire to be marked as regrooved?

A tire is marked as regrooved when it has undergone a professional retreading process that meets specific industry standards and conditions. The regrooving process involves removing layers of the tread to create new grooves, allowing for better traction and extending the tire's usability. This practice is particularly beneficial for tires that have sufficient remaining casing strength but have reached their tread limits.

Regrooving should only be performed by qualified professionals who ensure that the tire's structural integrity is intact and that the new grooves meet safety requirements. This process is different from simply repairing or replacing a worn tire; it is a way to revive the tire while adhering to safety regulations.

Other choices, such as visible tread wear indicators or excessive tread wear, indicate that the tire has reached its useful life potentially and should be replaced, not regrooved. An enhanced pattern depth alone does not qualify a tire as regrooved unless it has been treated by a professional and follows the guidelines for safety and performance.