Being a bit of a vandal, and being lazy, i drill a 1mm hole in the outer end cap and pump a couple of squirts of finish line grease in every month.
The new grease pushes the old grease out through the inboard seals.
I have a couple of sets of M540 spds that are getting on for a decade old and i have never had to take them apart in order to service them.
So it works a treat for me.
Being a bit of a vandal, and being lazy, i drill a 1mm hole in the outer end cap and pump a couple of squirts of finish line grease in every month.
The new grease pushes the old grease out through the inboard seals.
I have a couple of sets of M540 spds that are getting on for a decade old and i have never had to take them apart in order to service them.
So it works a treat for me.
Toodle pip