My OEM tires (Bontrager 700x23) have 2800 miles on them. When inspecting the tires with the bike on my workstand for a chain/cassette clean and lube, I found the following tire issues. (see images)

Am I pushing it to continue to run these tires or do they still have good life left in them? The rear is pretty squared off, but the front still has a nice round profile. Still, I prefer to change them as a set rather than mix old and new tires. I run 110 psi rear/100 psi front and I weigh about 165 lbs.

Rear tire:



Front tire: