The "offensive" of riding a cross-country bike is the basis of mountain bike riding, and the correct offensive will bring the rider a more comfortable and controllable riding experience. When off-road conditions get bumpy and the bike starts to bump out of control, good body posture will help isolate your body from the bumps so you can stay smooth and in control of the vehicle.
How to Adjust Downhill Attacking Position
Relax. If your body is in balance, you can relax and let the bike move freely under you and track the terrain, while your arms and thighs act like shock absorbers on a bike, absorbing bumps on the track.
Half squatting. If you stay on the saddle over rough terrain and you feel like you're riding a wild horse, stand up, bend your ribcage, bend your knees slightly, and if your bike has a dropper post, be sure to lower it.
Weight distribution.
Supporting your core with your legs instead of your hands will lower your center of gravity, improve overall stability, and allow you to relax your arms for vehicle control and steering, making sure your hands and feet don't stay stiff.
Foot support.
With the cranks perfectly level, place the balls of your feet on the pedals and drop your heels toward the ground.
