You Know It’s Time to Change the Bike Tire When …

…. the armor layer under the tread starts peeking through:

Eroded Schwalbe Marathon tire
Eroded Schwalbe Marathon tire

Actually, it started peeking through early this year, but why rush things?

I swapped in a Michelin Pilot City 700x32C tire with their Protek Max armor and reflective sidewalls; we’ll see how well all that works.

No tire liner inside, so I’m depending on the armor and the fact that it’s a rather chunky tire.