So, are you asking if your stolen bike is safe to ride?
I'm fairly sure it is, since there's plenty of material in the bottom bracket shell. Years ago it was common practice to cut sections out of the shells to save weight.
However, the bike might not be safe if the original owner finds you.
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Chain-L site
An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.