We can’t think of a better way to revel in the autumn colors while getting some exercise than next weekend’s “Pages and Pedals: Authors Bike Tour of Concord.” This event is Sunday, Oct. 18, from 1 to 3 p.m. and is sponsored by the Boston Center for Adult Education (www.bcae.org). The leisurely tour is led by Susan Merlino of Concord Bike Tours, and it will pass the homes, birthplaces, and final resting places of some of America's most famous and influential authors. Think Thoreau, the Alcotts, and Emerson… You don't have to provide your own bicycle. Just contact Concord Bike Tours ahead of time at 978-697-1897 to be fitted properly and you’ll be good to go with bike, helmet, and snack. The two-hour tour begins in the parking lot of the Ripley Elementary School, on Meriam Road in Concord. Cost is $55 ($50 for Boston Center for Adult Education members).