See the full article at Wired.
And the 11 most bike friendly cities?
1. Amsterdam (Take a look at some photos of Amsterdam bicycle culture.)
2. Portland, Oregon
3. Copenhagen
4. Boulder, Colorado
5. Davis, California
6. Sandnes, Norway
7. Tronheim, Norway
8. San Francisco, California
9. Berlin 10. Barcelona
11. Basel, Switzerland Source: TreeHugger