"What better way to spend a “San Francisco summer” morning than a full-throttle spin through the Bayview to keep dastardly street defects from disrupting rides? Join the Good Roads Crew in their noble endeavor to mark every pothole, crack, and trench with spray paint and turn them in to 311 for rapid repair. Good cheer follows our good work with drinks and lunch. First-timers always welcome; we’re a decidedly friendly group. Heavy rain postpones ride until Oct. 10."