Sweeping tread grooves evacuate water from the contact patch, and
the zigzag sipes create biting edges that provide the snow traction needed to earn the Three - Peak Mountain Snowflake symbol.
Zigzag sipes increase the number of biting edges, and the hydrophilic coating absorbs a micron - thin layer of water that improves traction on icy surfaces.
But its performance is still far better than what any full winter tyre could offer, particularly under heavy braking in the dry — Firestone says this is down to the use of 3D
zigzag sipes that hunch together under load, helping to stiffen up otherwise flexible tread - blocks.
The WinterContact SI (Snow & Ice) has a tread pattern with a bunch of
zigzagging sipes that maximize the number of biting edges per square inch of rubber.
Not exact matches
The strong centre rib with
zigzag grooves and secure lock
sipes provides the ability to handle the vehicles even during rain and snowy roads.