[QUOTE=mulveyr;15074340]If you're going through BB's that fast for that amount of riding, there's clearly something else going on, presuming your hour or two of riding every day doesn't including fording a river. Who is installing them? You, or a shop?

FWIW, the Shimano UN55's are supposed to be better than the 54's. OTOH, my Pelican came with a Velo Orange BB and I've put around 2500 miles on it since March through a LOT of rain and dusty trails, and it's still absolutely silent.

If you're really beating up on BB's, you might want to consider going higher end with SKS or Phil's.[/QUOTE

I gave up on my Phils and went with the shimano sq. taper.