Let's try this again....
Treadwear numbers are arbitrary. They are defined by each brand. They mean NOTHING when compared between brands. For example, the Bridgestone RE720s are a 140 treadwear tire. The Falken Azenis sport is a 200 treadwear rating. The Azenis uses a far softer compound and will wear down quite a bit faster than the 720s, while giving more traction the entire time.
Do you guys GET THAT?
Repeat after me... "treadwear means nothing." *repeat*
__________________

-93 MR2, #129 ES