Should MTB seats be level?
On a hardtail, it’s usually comfiest to have the seat roughly level. On a full-suspension bike, it can be good to tip the nose down slightly, to compensate for the fact that the rear suspension sags considerably further than the fork when you’re sat in the saddle.
Why does my mountain bike seat hurt?
If your seat is too high or too low, your legs won’t properly support your weight on the pedals, and the seat will step in to make up the difference. This means extra pressure where it hurts. Also, if you are sitting too far forward or too far back, the angle at which your body connects with the seat will be awkward.
What happens if your bike seat is too low?
A saddle too low usually means the hip angle between the torso and the thigh at the top of the stroke is restricted, which further diminishes the ability to generate force. And when force is generated, some of it is transferred into the knee instead of down to the foot, and this is a common cause of anterior knee pain.