Picked up an '83 FUJI Espree a few weeks ago and hadn't really had time to do much with it until today. It had one of those Cannondale velcro water bottle holders and bottles on it which I pulled off right away. Someone had installed it with sheetmetal screws and I just assumed they screwed them into the cage bosses, the bike was in the dark and I didn't even look at the frame. Hers's a before picture from the CL ad:
When I got it out today to hose it off and take a ride on it I discovered this:
It was probably done when the bike was fairly new. It wouldn't be so bad if they had at least drilled then on center so I could have used them as pilot holes for rivnuts. I'll fill these with black RTV and either drill new holes for rivnuts and position them so the cage will cover the holes or use old school cage clamps to cover the holes. Since it's already been violated I'm leaning toward rivnuts, I have the installation tool and rivnuts. Here's a shot after a quick hose off and wipe down. I probably paid too much but DANG does it ride nice. Yes, I need a new camera but I keep buying bicycles.