I've been riding aluminum fenders on all sorts of dirt and gravel, and haven't had a problem [yet].
I agree with a previous poster that the sound of little pebbles pinging as they ricochet off the underside of the fender can get annoying to some, and plastic fenders would mute that noise a little, but it doesn't really bother me. As for mud caking up, I think it has something to do with clearance, and as long as I have a 2cm gap between the tire and the fender, I don't have issues. On bikes with a really tight gap between the tire and fender (like less than 10mm), I get stuff jammed up there sometimes. Anton -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
