The documentary “Singletrack High” follows a diverse group of teens through the 2012 mountain bike racing season and explores the wide range of positive outcomes from keeping adolescents active on bikes at an age when many are “trading in two wheels for four,” as one of the subjects puts it.

Filmmaking brothers Jacob and Isaac Seigel-Boettner followed six National Interscholastic Cycling Association (NICA) competitors. “It was an eye-opener for us to see the impact that mountain bike racing has had on these kids,” says Jacob. “Being part of a high school bike team has helped them find acceptance, accept themselves, and expand their worlds.”

The next screening takes place tomorrow night at Specialized Bicycles in Morgan Hill, California. Several other screenings are coming up in California, New York, Texas, Arizona, Colorado and Tennessee.

Founded in 2009, the National Interscholastic Cycling Association (NICA) develops high school mountain biking programs for student-athletes across the United States. NICA provides leadership, services and governance for local leagues to produce quality mountain bike events, and supports every student-athlete in the development of strong body, strong mind and strong character through their efforts on the bike. It’s kind of a big deal here in Northern California, where several high schools have a mountain bike team.