I own a 2010 F800ST and recently changed both tires. The RDC sensors were missing, likely removed by the previous owner. When connecting my GS-911, I received a message that makes me suspect the original purchaser didn't opt for the RDC option. Can this message indicate the absence of the RDC module? I've read adding this option later may not work due to the bike computer not recognizing non-factory-installed sensors. Thanks for any insights.