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@Kill
You can move the chainring from one side of the drive side crank tabs to the other without removing it from the BB on most types of cranks. Undo the bolts completely, rotate it and slide it up the crank arm (having taken the pedal off first) I have done it on 144 and 130 bcd cranks several times. If you can take it off, you can put it back on again. I have the same problem with threaded drive side cranks, and when I had to service my BB, I used a hammer and punch to carefully hammer it off the BB axle. Good luck!