What would you like to get for this bike?
Hi there! I am looking to get $900 for this bike. It is solid pro materials. 
It is a good bike but I can't afford that much. Could you accept $600? That should be plenty for a new bike.
That seems a little low. It has been freshly cleaned and tunes, and has less than 100 miles on it. It is in excellent shape.
Meet me in the middle somewhere? What would you say to $675?
Hm, how about $725, and if you could come and pick it up? 
I was trying to stay under $700. Could you maybe consider $684?
Alright, $684 and if you come to get it yourself sound okay?