Climbing shoes should be resoled when the rubber on the sole is worn down to a point where it affects your climbing performance and safety. Signs that your climbing shoes may need to be resoled include visible thinning of the rubber, smooth or bald spots on the sole, or decreased traction on the rock. Additionally, if you start feeling discomfort or pain while climbing due to the lack of support or worn-out soles, it's a good indication that it's time for a resole. Keep in mind that the frequency of resoling depends on how often you climb, the type of rock you climb on, and your climbing technique. Some climbers resole their shoes once a year, while others may do it more frequently. It's a personal preference based on the condition of your shoes and your climbing needs.
