Anyone know how you calculate tractor tyre % condition? Many 2nd hand tractor sales refer to tyres as 60% etc.?

Answer 1

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when tyres are new the tread depth is say 1/4 inch deep well a used tyre is the percentage of the original depth most only guess but anything over 40% is a pretty good tyre

Source(s):

mechanic 20years

Answer 2

It's just like cars.... it's how much thread is remaining compared to brand new.

Most are just guessing so they are not reliable.

Answer 3

Just means that they have 60% of the original tread on them. It means they are 40% used with 60% left on them