Save This Event For Later Plymouth Gravel Grinder Plymouth, MA, Sun Jul 16, 2017 Who's Registered? | Contact Event | Event Website | Google Calendar Start line address: 127 Camelot Dr, Plymouth, MA 02360 Presented by International Cycling& Independent Fermentations. All proceeds to National MS Society & Team Spinal USA Cycling Permit # 2017-754 This is a past event. If you wish to see the details for this past event click "Continue" below. If you are looking for a current event, please search the event calendar .