What Causes Tailbone Discomfort?
Soft saddles are meant for short distances. If you have a lot of cushioning or poor quality padding this may actually be causing the problem. As you ride further and are seated for longer – it usually takes around 30 to 45mins – a soft saddle allows your body too sink too far. This means structures like your tailbone that are not meant to make contact with the saddle will.
This sinking is more likely to lead to tailbone issues for upright riders with a straight back, weight will be transferred directly down and as the soft padding becomes compressed the tailbone comes into contact with the saddle and begins to take weight.
Another outcome of spending longer on the bike can also be a tired and collapsing body position. If you are not maintaining a flat lower back but tucking under or rounding this changes the mechanics of where your tailbone will be situated. Again, like the sinking into the soft padding, this collapsing of your body shape allows the tailbone to make contact with the saddle.
Finally the width and shape of your saddle has a role to play. Your sit bones need a good flat platform for contact directly underneath them. If your saddle is too narrow and has a rounded shape that allows your sit bones to “fall” off the edges, the structure of your seat will be much closer to your tail bone.