Also, here's pics of the tread pattern that's recessed between the tread blocks. I've never seen that on a tire...don't know if it helps with traction but it couldn't hurt.
If you are refering to the little "bars" down in between the lugs those are suppose to help shed mud and snow as the tire rotates.
Billy Oliver
15xIronman
My Sponsors:
Accelerate3Coaching
TriSports.com (PM me for 1 time use 20% off code)