At long last, Google Maps has routes specifically for bikes.

With the click of a mouse, the new feature allows you to plot the best (and flattest!) ride from Point A to Point B. Several cities, including New York, Minneapolis, San Francisco and Portland, Oregon, have bike-specific mapping sites. But Google is rolling it out in 150 cities nationwide and announcing it Wednesday at the 10th Annual Bike Summit in Washington, D.C.

“This has been a top-requested feature from Google Maps users for the last couple years,” says Shannon Guymon, product manager for Google Maps. “There are over 50,000 signatures on a petition.”