Yep. I've done mine. You can get the bobbins from several sources, including Brembo
You use the bobbins, shims and clips from the fully floating discs spares list!!
I think I have one set of black ones left at £75. The Brembos are about the same money for a set to.
The worst bit is getting the old fixed ones out!! It's real tough taking an angle grinder to your Brembos ya know
