Rotor bobbins

[Mickle]

Just a quick one, is there any service work or testing ( other than visual inspection ) that we are supposed to be doing to the bobbins in floating disc brake rotors?

[andy650]

I always make sure mine spin reasonably freely, if not then I use a bolt/nut/washer and a little WD40 to clean them out and get them moving reasonably freely.

[yokohama]

As per the above. Usually do mine once a year.
https://www.youtube.com/watch?v=1qoPqN2GBdw is really helpful

[Craig380]

Brake cleaner is good for blasting out the crap before doing what's suggested in the video, and doesn't leave a residue.

[shiftin_gear98]

Mine have and will always be stuck solid. Until I replace the discs.