Join Mattapan Food and Fitness for their 9th annual Mattapan on Wheels Bike-a-Thon on Saturday, July 20th! Ride the family, intermediate, or expert route along the Neponset trail into Dorchester. Free bike loans and helmets will be available with priority given to online registrants. This event is free, but with a fundraising goal of $10K, any support helps! Learn more, register and donate here.