I have to sell my beloved single gear bike because I leave End of next week. It's a solid single gear bike that can be used as fixie or freerunning, now it is freerunning. I only used it for three month, so its basically new. I give USB chargable lights and a lock to it. Also i mounted reflectors at the wheels. So I think its a very solid and valuable bike.
If you want to have a look at it, under day it stands next to Spilker Building on the side facing Physics Department. I'm in the subbasement there, so I can always come up if youre interested.

I really recommend getting this bike, I'm very sad I have to leave it here...

Write to me at ulicz@stanford.edu

chhers, uli