I've had multiple times the issue of the loadbearing screw for the bike rack breaking in half, and it's always a hell to get out.
There seem to be two schools of thought:
- Drill a bigger hole and put in a nut and bolt (had this done in France on one side of the bike, I think the hole was increased from 5mm to 6mm; took about 5-10 minutes)
- Very precisely drill a hole through the half-screw that is stuck in the bike frame, so the hollow half-screw can actually come out, without making any change to the bicycle frame (in Germany they preferred this option, but they were all too busy so I had to go to a volunteer-bike-fixing center and did this myself in about 2 hours while breaking 2 drill bits in the process)
Now the side where the hole size hasn't been increased has this problem again, and being currently in Spain, I'm widely getting advised to just drill a bigger hole.
I'd like to make an informed decision, but it seems to me like the optimal decision depends on the material of the frame and its size around the screw hole and its shape.
How does one even make a choice between 1) and 2) ? Is one obviously better? Or is it a question so hard that I probably can't get it right anyway? Or it doesn't really matter ... ?