My rotors are quite worn, grooved, and have a lip on them. I'm in the research phase for replacing them and thought I would share my findings and see what others have done.
- Nobody wants or is able to machine them. I contacted a bunch of bike, car, brake, and machine shops. Being a weird shape, automotive brake lathes can't do it, and machine shops don't consider it financially viable to make the necessary jigs to either lathe them or use a milling machine to grind the surfaces.
- For replacement, you have four main options (prices in AUD). Genuine is $512, brembo series oro is $280, a secondhand item is $165 from a wrecker, and a chinese ebay item is $100.