Hi I am really interested in your bike. My son has been looking for one and this looks like a great bike! Can you tell me something about it?
This bike is great, and I had some good adventures with it. It's a great downhill bike and I think your son would love it!
how are the tires and is it rust free
There is no rust on it and the tires are brand new. 
Well , I was thinking I could pay about 575
Since this bike is in such a good condition I cannot take any less than $700. 
Well could you deliver it if I pay the 700?
I could deliver it to you today if you paid that.