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  1. Personally, I’d return the bike for manufacturing error.

    You’re right, that’s a Right (R->) sided cup threading into the Left side with the bike upside down.

    The threading is supposed to be the other way around because it is then self-tightening.

  2. Somebody was having an off day when they built that frame. That’s wild.

  3. possibly an italian threaded bottom bracket, they are threaded the opposite way to a standard BSA one

  4. Probably an Italian BB they don’t have the reverse threaded part like so called English threaded BB’s

  5. BreakfastShart on

    I’m failing to see any threads on the bike frame. Are you sure that’s not press fit?

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