Following my recent bike-on-car-rack-hit-by-other-car accident, I replaced my rear wheel, rear derailer, cassette, and chain (it was about time for the latter anyway).
The mechanic who realigned the frame mentioned to me that the large 52T chainring looked very worn to him, and indeed I do use it >90% of the time. Is there any way to accurately measure the wear of a chainring without special tools? I don't really want to wear out my new cassette and chain, but I'm not sure if "looks worn" is a very good criterion for replacement.
I started looking for new rings, and having trouble finding any that aren't so expensive I might as well buy a whole new crankset. Does anyone have a good go-to source? I'm looking for 52T, 130mm BCD, preferably black, and preferably steel (I'd like this one to realllly last).