As I was prepping the frame of my Colnago Master Olympic for sale, I heard some rust inside the seat stays. Also the vent holes at the bottom of the seat stays show some rust. You can somehow hear the rust here on a short video I did on Youtube: nt5HsNvUhJ8 (Sorry, newbie here, I do not have the rights to post links yet)
I have been riding this bike for about 6 years without any issue but now I'm wondering: Is it a serious issue or can I just ignore it? If I can ignore it, is it sellable (with being transparent about the issue, obviously)?
Such great memories of riding this bike
