Builder

Explore Builder on Accelerated Viewer — cast, details, and an AI quiz you can generate in minutes.

Builder tells the story of trail building, through the eyes of 15 of the sport's best riders and most creative builders. From the first shaky pedal strokes of youth, to the game-changing moves of the sport's top pros, you'll see how mountain biking is shaped by shovels and chainsaws in endless pursuit of the perfect ride.