Before you read, be aware that I have searched using google and this forum. I am looking for a less expensive than OEM alternative rear rotor for my 2010 F650GS Twin. I cannot find any. All search results I get are for front rotors or for rear F650GS single / F650GS models or for F800GS models, etc. EBC does not list one, Galfer does not list one (it would probably be more expensive than stock), etc. Before you make a recommendation or make general search suggestions, please double check it yourself. Does everyone just go with OEM for this?