Quote:
Originally Posted by M3n2c3
Ssssooooo. . .?
In particular, I'm curious about the differences in ride quality and dry grip.
I just checked the specs on the 070s, and saw that the treadwear rating is only 140. . . is that right? 
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No one's run the RT-615's yet, they came out mid last season, and nobody needed tires at that point. Plus they cost about $50/tire too much, so no one was willing to spring for 'em anyway.