I just mounted some new E3s and noticed the same thing with the tread pattern, but followed the arrow on the sidewall. With the reports of mileage from tires varying so much from bikes previous to the new frames, I believe tire mileage is STILL directly influenced by the use of the throttle and brakes, not new style or old style frame. I got 30k out of the front tire on my 08 RK and 15k out of the rear 402s. That seems to be about average. Some got much less, some got a bit more. If your riding style is based more on fun per mile rather than minimizing cost per mile, you will pay more for gas, tires and brakes. That's just the way it is, regardless of new frame or old frame.