DIY shimano hub cleaner

Quoted message said:

notice the inside outboard groove on one side of a shimano hub? look in
there! it's over the outside lip and then down down down into the
darkness. That's the old grease yawl did't cleanout!!

a paperclip end bent 90 degrees covered with a patch of cloth wipes it
out clean. try acco vinyl covered clips from walmart. also good for
holdign dayglo paper on the bars and rear rack, and nuts and washers
together.

The Parallax ones are the worst, because it's virtually impossible to
get the crud out of that huge shell. Thankfully they're so well sealed
that they can go for many years without regreasing.

compressed air
but that's one factor in formulating a good grease mixing into and
neutralizing the old left behind or is that the old right behind?