Home › Shop & Gear › Helmets — Full-Face, MX & ADV › Bell Moto-9S Flex MX Helmet Bell Moto-9S Flex MX Helmet 🪖 Helmets — Full-Face, MX & ADV From about $600 MIPS + 3-layer impact-progressive liner. Worn by AMA pros. The dirt/eMoto benchmark. Shop on Amazon → As an Amazon Associate, the EMOTO earns from qualifying purchases.