The depth of the main grooves in the tread must be at least 1.6 mm on summer tyres and at least 3.0 mm on winter tyres. The main grooves are the wide grooves in the central area of the tread on about 3/4 of the tread surface.
Still questions?
If you didn't find the answer to your issue, you can always contact us by this form or giving us a call.
Send us direct email
Our customer support will answer your enquiries and questions in:
...or give us a call.
Phone number: +358 10 401 7000 (Finland)
Looking for other countries' phone numbers?