[alvaro84]

Thanks for the link, it was an interesting read! Especially that I have clear signs of left side wear on my front. I was quite surprised when (after almost 30000km on the present front) I saw how much more the left side is worn than the center, which I was measuring before. So much that I'll ditch the front before it could get really close to the wear marks at its center.

Other than that, I'm quite focused on wearing the rear instead of the front. Trying to avoid braking spares front, riding at lower speed than most other riders spare both - but P&G uses much more acceleration than keeping reasonably constant speed. So I definitely put much more stress on the rear than on the front.

I can't do the math because of many unknown factors, but I probably only convert worn rear rubber to saved gas with P&G, instead of clearly saving anything. But it's more fun this way...