Originally Posted by
Unca_Sam
In theory, yes. But what proportion of those particles would you expect in an all-steel hub?
I've never seen the inside of my Alfine 11, so I don't know if there are any bushings or other parts made of brass or bronze. If the hub is, in fact, all steel, there would only be ferro-magnetic particles. I don't worry about the potential for particles that would not be affected by the magnet. Heck, they might just settle to the bottom... I typically don't go back to recover the oil for a couple months or more.
Hmmm... I wonder if there are any hubs with titanium parts.
