Join Date: Feb 2008
Location: Medical Lake, Washington
Surface rust is no big deal as long as the chain is running smooth still. I use the dupont lube and it would be tough to get me to stop using it. It just may be showing you to do a bit better job of covering the chain when you lube it. Or in that length of a ride it may have just done its job and needed to be resprayed. In humid situations surface rust can show up in very short time.
Keep the Rubber Side Down.
1986 XR600R,1986 VF1000R,1999 CBR1100XX,2006 CRF450X,2007 DL1000 V-Strom