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Sudo said:
own it, no. know which one, yes. it's the BMW parkbike.
Re-read the specs. It is a 68mm BMX BB shell, not 63mm.
68 is the usual BB shell width.

"American" is the usual BMX style. Big unthreaded shell.

"Euro" is mtb/road style. Small threaded shell.

You can get adaptors to use euro BBs in BMX shells.

"Spanish' is rarely used in the US. Mid size shell.
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