Originally Posted by
T-Mar
Cut a 1" length of inner tube and stretch it over the bottom cup during your next overhaul. Basically, it acts as external seal. It's not pretty but it does keep out the grit, allowing you run your SR headset without less attractive (IMO) shorty fenders.
This. BITD I did this on a non-sealed headset on my year-round MTB in the PNW (rain, rain and more rain). Went several years without having to repack.