New, updated locking pin for ST6 models. The system has two locking locations, one which is fully closed, and a second "click" which allows you to lock the visor in position but allowing a little restricted airflow. This pin has passed the new FIA test for 2025 and beyond, which requires a helmet to stay closed during frontal and linear impacts to better protect the user. The visor operation can be carried out single handedly. This pin will replace the current pin on your ST6 F/FN helmet, and can also be retro-fitted to an ST6 GT/GTN when fitting a long visor.