It's strange how different brands seem to vary +/- 1 Euro size for the same named shoe size. Width varies between manufacturers too. If you're particular about the shoes you get (rather than just wanting a pair that fit), you're probably better off contacting the importers for the shoes that you fancy. They don't seem to have a problem finding size 50 shoes for the bike mag reviewers, sponsored riders etc. I like Sidis, but even their size 49 (non-Mega) tend to be narrow.
If you were in the US, you'd be able to choose from a wide range, as everyone seems to offer big sizes there. Note though that US 12 = UK 11 etc.
It's strange how different brands seem to vary +/- 1 Euro size for the same named shoe size. Width varies between manufacturers too. If you're particular about the shoes you get (rather than just wanting a pair that fit), you're probably better off contacting the importers for the shoes that you fancy. They don't seem to have a problem finding size 50 shoes for the bike mag reviewers, sponsored riders etc. I like Sidis, but even their size 49 (non-Mega) tend to be narrow.
If you were in the US, you'd be able to choose from a wide range, as everyone seems to offer big sizes there. Note though that US 12 = UK 11 etc.