I didn't measure it, but it was way more than what I should be driving on at 115mph. I guess the faster you go, the quicker you push the water away
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Seriously the V12s are way overrated due to the stupid reviews online. They are good tires to drive around on, but completely useless as a performance tires. I had them for <2000 miles, sold it as soon as I found a sucker to buy them.