Bike Score debuted this week with an assessment of the ten most bikeable large U.S. and Canadian cities. According to Zimmerman, "This tool is a little more limited (only 10 cities have been scored) but it's also more in-depth: Walk Score will assume you can stroll to the grocery store down the shoulder of a four-lane road, but Bike Score also covers bike path availability, terrain, and how many people will be joining you on your two-wheeled commute."
To generate the general bikeability rating, Bike Score assesses a location's proximity to bike lanes, hills, destinations, and other bike commuters. Minneapolis toped the inagural list with a 79 overall score, earning it the "Very Bikeable" title. San Francisco and Portland, who both earned a 70 score, are the only other cities to earn that title. No city received the highest rating of "Biker's Paradise"