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Tyre Tread depth


tonyinfrance

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"the tread

depth of tire must be at least equal to 1.6 mm all around.
If this depth is even at one

location, less than 1.6 mm, the tire is smooth and should therefore be

changed.

Lumps of rubber are placed in the bottom of the main

grooves.
When wear reaches them, it means that the depth is

equal to 1.6 mm.
The

tire is smooth and should therefore be changed.
"

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If you don't have a depth guage and want to know where to look for the where indicators take a look onthe sidewall of the tyre where it meets the tread and around the tyre you will find small raised triangles if my mind serves me right and these are where the depth indicators are.
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Frankly running tyres down to the legal limit is ill advised, at 1.6mm their performance, particularly in the wet, will have deteriotated seriously. I always change my tyres well before that.

Not independent I agree but THIS site discusses the difference in performance between 1.6 and 3mm

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