I am thinking about fixing up this old Royce Union 3-speed for my wife. Took a closer look today and noticed that there are some dents and superficial rust where the chainstays meet the bottom bracket. As you can see, there is some rust and some of the paint has chipped off, but the rust seems superficial. Would this be safe to ride for a 110 pound woman who would ride it very easily on a 2 mile commute to work? Thanks for any info.
I had the seatstay crack just below the joint to the seatpost clamp on an '88 Schwinn Traveller. It had obviously been used in road salt and was heavily rusted inside the frame as well as rattlecanned. Maybe the oxalic acid I put into the frame to clean out the rust contributed to stress corrosion cracking. I was not happy with how I rinsed out the frame but decided it was probably OK. Then it cracked. So it happens even on good steel frames with a lifetime warranty.