>>1940916there are some other issues that afflict aluminium bikes
The bosses tend to be threaded inserts that are glued into the frame (often badly).
Older bikes, or ones that are left outside, tend to have seized bottle cage bolts.
These fucking inserts loosen in the frame well before you even strip out an m4 hex head.
The number of bike owners who actually grease bolts and maybe clean and re-grease every so often is very small.
I've got several frames with this problem, one is a Pinarello. On steel you can have siezed bolts but the actual boss is rarely a problem, you strip out the head, just cut a new slot, eventually you get it with force/ penetrant, no harm done.
Yes you can re-glue inserts but it's kinda involved and the frame around this area is often corroded. Aluminium frames, even under the paint, often corrode, and dealing with this corrosion (which is extremely ugly and a tiny bit sketchy) is more difficult than rust. Aluminium corrosion is not in any way shape or form charming patina.
The same issue but worse exists for carbon bikes, except they're less likely to have been neglected.
This isn't to make any larger point like allum bad i'm just venting about something which annoys me.
steel is real though.
