Bike riders from BikeNewton and BikingBrookline will join forces this Saturday for a ride around the Charles river through Newton, Waltham and Boston.  BikingBrookline departs at 9:15am from Brookline High School.  Details here: https://www.bikingbrookline.org/grouprides The Brookline contingent will then cycle up Commonwealth Ave and meet the Newton group at the corner of Comm Ave. and Walnut St. at 10:00 am.   Whether you are joining the ride in Brookline or Newton, please register here.  (If starting in Newton at 10am, answer "yes" to the related question.)     So let's meet up in the carriage lane at the corner of Comm. Ave. and Walnut by 10am [...]