All-Terrain Tires with Mountain/Snowflake Symbol

Monday, September 13, 2010 by Chad Hocker

The mountain/snowflake symbol branding on a tire sidewall lets us know, at a glance, the tire is really good in the snow.

Some Alpine passes require a traction device such as chains to get through when winter is at it's worst. Tires with the mountain/snowflake symbol allow you to pass through as well. Some states also require at least 6/32nd of tread depth. Double check locally on the tread depth rule.

The following non-winter, light truck/SUV tires are branded with the mountain/snowflake symbol.

On/Off Road All-Terrain

On/Off Road Commercial Traction

 

Comments on All-Terrain Tires with Mountain/Snowflake Symbol

Wednesday, October 22, 2014 by serban matei:
I want to ask you about the rubber compound of the tires.
Accordingly with my knowledge there are 3 types of compound depending on temperature when are used (the season):
1. For summer tires - perform well only over +7 C, bad under this value.
2. For all season tires - perform well at medium temperatures (I'm not clear with values), but not very well at high or low temperatures. Under 0 C could be even bad, close to summer tires characteristics.
3. For winter tires - perform well only under +7 C, also at many degrees under 0 C and bad at higher temperatures than +7 C(becomes very soft and are "gone" fast in this case).
My question to you is : General Grabber AT2, which has some sizes rated for severe winter (snowflake symbol) and some sizes rated only as all season (M+S), has the rubber compound proper for low temperatures (as winter tires) or for medium ones (as all season tires)?
Thanks for your reply.
Tuesday, October 28, 2014 by Tire Rack Team:
Summer Tires – Best in hot/warm conditions; diminishing traction in near/below freezing temperatures (7 C)
All-Season Tires – Performs well in warm and cold conditions, but diminishing traction in frigid temperatures (-12 C)
Winter – Best in cold, frigid temperatures (0C), but diminishing traction in hot temperatures (+22 C)

Because the Grabber AT2 is an On-/Off-Road All-Terrain tire, it features a tread compound closest to All-Season characteristics.

While some sizes earn the mountain/snowflake designation, they do not equal the snow and ice traction of true winter tire.

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