Few, if any, mountain bikers have done as much as Brandon Semenuk has in his career to simultaneously boggle and inspire the minds of those who’ve seen him ride. Whether on screen in one of his many, meticulously cinematic, genre-defying edits, or in person at one of his numerous jaw-dropping victories at major events such as Rampage in the harsh, red-rock desert of Utah, or Joyride, on sculpted slopestyle courses at Crankworx, Semenuk’s calculated style, combined with his sheer creativity, is a wholly unique thing to witness. “His path has been so prolific—with major contest wins and radical short films dropping like bombs annually—his 20-plus years as a fully sponsored professional seem to have flown by,” writes journalist Brice Minnigh in his newly released profile, The Alchemist. “While two decades of cutting-edge performances might portend the winter of most pro riders’ careers, Semenuk hasn’t even reached his peak—as evidenced by the fact that each new video he releases marks an...