Over 60 years has gone into the development of Bell Motocross helmets. From the first helmet Roy Richter created in 1954 to the latest Flex technology found in the Moto 9 Flex range, Bell strive to create the safest helmets on the market. Flex technology integrates 3 unique materials of varying densities to provide an energy management system that excels in low, mid and high-speed impacts. In addition to this, Flex has rotational energy management to protect you if you receive an angular impact. This works by allowing subtle movement between layers reducing rotational energy transfer from angular impacts. For additional information click here. BELL—ESTABLISHED 1954. PROVEN EVER SINCE.