Originally Posted by
AngryScientist
actually the SR cups are a bit lighter, and have less seals than the record cups, since they are made for ceramic bearings. the SR cups will indeed work just fine, but dont seal the bearings as well as the record cups. use either/or, but if you ride in the wet a lot, i'd look for the record cups.
I wasn't aware of the seal difference until you pointed this out. Makes no sense to me that ceramic bearings wouldn't need protection from contaminants. I think all bearings do regardless of material, but that's just me. I guess the ceramic bearing weenies can't tolerate any seal drag.