Thanks, everyone, for all the advice.
It is a 10-speed with rim brakes, SRAM Force, and DT 1850 RR wheels. The chain, cables, and cassette are fairly recent. The motor, however, is getting old.
I have no experience with wheels. What wheels would people recommend? It's decently hilly and windy where I ride. Do people think I'd have greater bang for the buck with nice wheels or a new frame?