Krezzno provides independent safety advice for cycling courses. For example, the results achieved by a person are tested by an innovative detection system. Placing these two methods side by side creates an objectively independent picture of how safe the course is. Krezzno puts the riders at number 1! There are too many losers without a good security policy. Receive your starting permit and your classified Krezzno certificate level 1. Each object is given its own rating on the level of the danger