Upgrade! Put a new cassette and chain on that one, cleaned it up, sold it for too much, bought this for too little:
2006 Giant OCR Composite, hardly ridden by a very sweet elderly lady that claims 300 miles a year since '07, but I have a hard time believing it. Went from sora/105 to all 105, 8spd to 10spd, alu to carbon, threw in a set bag and pump that I'm not sure about. Also, not sure I want this adjustable stem. I have a bontrager that will work fine, likely swap that. Has mbt pedals, need to get some road pedals and shoes.
Took it up the local reservoir two days after I bought it: 22.4 mi, 1:41 hr, 1477 elev gain, avg 13.28 mph. Not huge for some but way harder road biking than I've ever done. Bike was sweet.
The OCR is billed as a bit more enduro than aero, and I'd agree, but with the bars slammed I didn't feel like I was losing anything, and Strava claims I broke 61 mph on a downhill. Felt like 100, was probably 50.