i might be interested. I am looking for a new bike so i'm serious. i live somewhat in the area. i live in Marin County so like 4 hours from you. My email is, ewalsh493@yahoo.com
This is my brothers bike. he is about 5 and it fits him fine. im sure your son is continuing to grow as he is only 7. I am sure he will fit it fine,my brother rides it with the seat up about 5 inches.
Please contact me.