Ok, so basically I have a friend who is up at stanford for the summer and needs a bike to get around campus. Since I don't know any of the bike shops up there I can't really help him out much, but figured you guys would be able to. He said he's looking for something as cheap as possible, so a hybrid or inexpensive mountain bike. He checked out the shop on campus and the cheapest thing they had in the store was 550$. I think he would be good with something in the 300-400 range, so if you guys could suggest a shop that would be able to help him out. He also knows nothing about bikes so craigslist is pretty much out of the question because he won't know whether he's getting ripped off or not. Any help would be appreciated.