18mm ? 18mm should look noticeably slimmer. I have french stems that are stamped 21.9 but that is a big diff from 18. use the calipers and put them up to a ruler. see if its 18mm.
@loafheads started
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18mm ? 18mm should look noticeably slimmer. I have french stems that are stamped 21.9 but that is a big diff from 18.
use the calipers and put them up to a ruler. see if its 18mm.