Rachel Hassler turns her bike Sunday by bouncing the front tire at a curve in the course. Riders run a mountain course, jumping over rocks and maneuvering difficult terrain.
Dustin Ginder concentrates while taking his bike down a hill during the mototrials championship.
A rider waits his turn to take on a section of the course Sunday at the AMA/NATC USA National Mototrials Championship in Sequatchie, Tenn.
Signs showing spectators where the trials are located are posted on a tree Sunday.