The most logical to me. If I took my hand, extended my fingers, walked up the side of my face with each finger tip. That is the front wheel being pushed by the back wheel.hard acceleration, no burn out
If I now take my hand, press it hard against my forehead, began dragging my hand over my nose, my whole face, I being pressing real hard like accelerate away really hard, no spin. I will choose this for most wear to the rear wheel.
No. Go back to the fingers as the front wheel. Notice how you rolled the wheel 360 degrees, but there is a step. A leading edge. A trailing edge. One is a rise, the other is a low point. Just the wheel turning once over the rise, begins to tear away material is the wear coming around once.hard braking, no lock up
No.heavy loads/ passenger riding
No. That will show wear down the middle if over inflated. the edges worn more, the center bows in, not out, so that wears less as the center contacts less push out, this is more under inflated.under/over inflated pressures
Nopoor road conditions
When the bike rolls off the dealer floor, I believe, both wheels move at the same time. If one move less than the other, being two different circumference, one spins more than the other per one roll around; we start at the air valve, end at the air valve.
Speaking about the air valve. Does not that [front wheel] spin in a static step? The air nozzle never turns 360, it more bounces like an mmmmmmm. Where, when it comes around, it is more a hoop that never connects. And when it comes around back to the air stem, there is a leading edge up to it, a trailing edge leaving that hoop or stem hop. There are your steps in the front tire. The rear [step] is being sheered off smooth and tears over the leading/trailing with ripping power.
And when I see both wheels wear in two different patterns, one is a worn as the other. Unless you wheel stand and leave that wear from happening. Only a genuine squid changes one tire only.
I know it is my opinion, but to me, it looks so lame, someone asks you if you rubbed both hands together, which palm stays cold? Which has less friction hitting the road? Which one? Like, if I used air pressure as a wear factor, I never roll the tire, is it air pressure that wears the tire down, sitting in a corner? That is a no to me.
If I asked; Who changes one tire only? Most likely, they voted for obama, will vote for obama again. Something like that, when it comes to changing one or both tires. Dis is how it goes down, me looking at joe-A and his tire change.

