heat cycles may not be an issue with street tires, but i believe that age is. maybe it's in my head........but i don't think my tires grip like they used to, and they're about 1.5 years old now. now what about driving in the cold........i've heard that using what are supposed to be sticky tires in the "cold" also ruins them. so how cold is cold? i've used them when it's like 30 degrees outside, but never in the snow.
i was more thinking of RA1's or V700's.
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