I think it'd have to be super wet or submarine to make much of a problem. The stem cap goes on pretty flush and anything near stem bolts would be outside of steerer.
Getting mud and water up the steerer from the tyre is probably a bigger issue and the plug in the steerer would actually prevent that too.
Oct. 6, 2019, 10:01 a.m. - Kelownakona
I think it'd have to be super wet or submarine to make much of a problem. The stem cap goes on pretty flush and anything near stem bolts would be outside of steerer. Getting mud and water up the steerer from the tyre is probably a bigger issue and the plug in the steerer would actually prevent that too.