One of the great advances in mountain biking today is the advancement of mountain bike fit and geometry. New bikes have longer reach now with shorter stems allowing the rider to more room to move around the cockpit. The mountain biking body position is now a key factory in riding fast and safe through more advanced sections of trail.
Dropper posts as well get the saddle out of the way to let the rider move forward, backward, left and right. The rider is able to position the hips and the body's center to increase traction and adjust the attitude of the bike.
The body has a few key points that have to be actively positioned throughout the cockpit during technical riding
And finally, flat pedals allow the rider to move and adjust their feet during descending and cornering. And it stresses the importance of up and down heel positioning to stay glued to the bike.