20/10/2026
Your tyres warn you long before they fail.
Moulded into the bottom of the main grooves there are small raised bars. They sit at 1.5mm. When the tread wears down level with them the tyre is legally finished, and it has been getting worse in the wet for a while before that.
You do not need a gauge for this. Run a fingertip across the grooves and feel for the bars. If your finger sits flush, it is time.
Age counts too. A tyre with plenty of tread and seven years on it has gone hard, and Australian sun does that faster than the tread wears down. The four digit code on the sidewall tells you the week and the year it was made.
Not sure what you are looking at? Send us a photo of the sidewall at askmate.com.au and we will read it back to you. Or call 1300 144 534.
She'll be right, just askMATE.
askMATE is M.A.T.E. (Mobile Auto Tech Expert), an Australian-owned car advice and parts business.