Based on my experience, I'm kind of surprised no one has come up with something -anything, really- that lets us know for sure, that your shoes are done. That person would make a lot of money with that.
The thing is, that all the running shoes I have bought so far (OK, most of them) look just as good after I've used them as when I bought them. Right now, I have two identical pairs of Brooks Beasts: One new, one spent. They look the same and yet I can't run on the old ones without major knee pain.
I used to go by pain. When I ran and my joints, hips and back started to hurt I knew it was time for a new pair. Most (sane) people will tell you that when you reach that point you are past the time to change them but that's what I did. But that was before I started to have knee issues. Now, the knee is the first thing that starts to hurt. Way before anything else. What's worse, I can't yet identify if the knee is hurting because I need new shoes or simply because it hurts. (Yes, it will hurt from time to time)
|Ahhh... fresh pair of Beasties.|
This is bad news. Not because of the knee perse. I'm learning to deal with that and I'm hoping it gets better as I lose more weight. It's because now I have to buy shoes more often. On average, I've heard running shoes can go 300-500 miles before they are spent. I was already below that, reaching 250 miles if I pushed hard enough. This last pair was done with 210 miles. Crap.
Such is life. You know, Brooks Running should sponsor more Fat Runners. That, or I also hear that there's a bunch of stuff in the human body that there's two of that you could survive without one of them. You know, like kidneys and lungs and stuff like that. Apparently there is a market for that...
How about you guys? How long do your running shoes last? How do you know it's time to change them? Any tricks you can show me?