From SFBC:
The Good Roads Crew checks out the new Flex Seal paving treatment being applied to neighborhood streets. Help assess rideability for cyclists and get a good holiday spin along the Avenues and through the Fillmore and Japantown. Potholes to be marked all the way. First-timers always welcome (and get first chance with the spray paint). Drinks and lunch follow. Contact neal@sfbike.org for more info.