Needs a location
I ride a loop around San Francisco a couple times a week. I start at seventh and Lincoln. Head around Laguna Honda and up twin peaks. From there I head down to glen park Bart and over to Alemany. Across to Caesar Chavez and then third street. I break at the ball park for water and the cross the waterfront to the Golden Gate Bridge. After that it is basically across Aguello back to start. The average speed is about 12 mph over all.