While Boston might seem a little more rough and tumble I would guess Cambridge made the list because of the vast number of bikes located in that fine city.

Kryptonite’s Top 10 Worst Cities for Bike Theft

1. Philadelphia, PA
2. Chicago, IL
3. New York City, NY
4. San Francisco, CA
5. Tucson, AZ (tie)
Portland, OR (tie)
7. Denver, CO
8. New Haven, CT
9. Cambridge, MA
10. Austin, TX