I sell a lot of stuff on CL. When I list a bike (or anything really), I list it for what I think it's worth and don't negotiate on price. I am very patient and will re-list it for a lower price if it doesn't move. You'll get a lot of email from low-ballers. I just ignore them. You can tell pretty easily if someone is a serious buyer or not. If that were my bike I would start with somewhere between 55 & 60% of MSRP.