Is it better to have a rigid or flexible sole for gravel shoes?
Ultimately the degree of sole stiffness depends on the rider's preference. A rigid sole offers better power transmission, which is ideal for long rides or rolling terrain. However, a slightly flexible sole offers greater comfort on long bike rides, as well as for walking, and is beneficial for technical creek crossings or off-trail exploration. Most gravel shoes tend to have a moderately stiff sole to provide greater versatility.