Riding and camping Northern California and beyond, since 1965!

I will be needing to replace rotors on my 19 f850gs.  Oem rotors are north of $400.  I have also seen Chinese replacement rotors on eBay for ~$50ish. (Niche, Arashi)

 I’m not enthusiastic about either of these options. Has anyone had good experience with the eBay rotors, or have any better options?

thanks