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Old 04-02-2014, 03:34 PM   #9 (permalink)
elhigh
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This site calls out Goodyear and Michelin specifying against aftermarket siping. That's reference enough for me.

If you need to rely on tweaking the tire to try to cope with the conditions, you're driving wrong.

Siping provides more opportunity for tread blocks to move independently of others. Tire movement not in the direction of travel is also known as "squirm," and it eats energy.
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