All Bell models approved for Snell SA 2015, SFI 24.1 Youth, FIA8859 or FIA8860 are produced with M6 terminal hardware incorporated into the helmet shell and certified for use with approved head and neck restraints. Models designed specifically for karting will not include M6 terminals and are not suitable for head and neck restraints. Bell recommends contacting the head and neck restraint supplier to confirm the anchoring system required for the specific device.
For Snell SA2010 or earlier models, many helmets are pre-drilled and do not have M6 terminal hardware in the shell. For pre-drilled models, the head and neck restraint will have an anchoring option with backplate hardware. Remember that when installing, the backplate anchor hardware must be inserted between the shell and the helmet liner with the threads matching the pre-drilled hole in the shell. Contact the head and neck brace manufacturer for specific instructions or contact Bell Racing if you have questions.
Pre-drilled shells have a removable rubber plug that will expose the pre-drilled hole.