The OF-2 brings you all the great features from the GM-2 along with some new ones like removable liners. The OF-2 is our most traditional 3/4 helmet. The five snap design allows for a variety of shields and visors to be installed. With adult and youth sizes available, the OF-2 is ready for affordable family fun. PCI Elite Wiring is a black 4 pin connector for Elite and Comlink X intercom systems. PCI Trax wiring is a gray 5 pin connector for Trax stereo intercom systems. PCI Custom Wired complete with microphone on a half flex/half wire boom, large, high watt speakers and H2NO water resistant Pigtail. DOT Approved (FMVSS218 Approved) Removable, adjustable and washable COOLMAX® interior allows for easy cleaning and custom fitting 4 different shell sizes allow for a full range of fitment from youth to adult 3-snap visor 5 snap design allows for a variety of shields and visors to be installed XL Wired Helmet Weight: 2.95lb Size Chart Size Centimeters Inches YS 49 – 50 19 ¼ – 19 ¾ YM 51 – 52 20 – 20 ½ YL / XS 53 – 54 20 ¾ – 21 ¼ S 55 – 56 21 ¾ – 22 M 57 – 58 22 ½ – 22 ¾ L 59 – 60 23 ¼ – 23 ½ XL 61 – 62 24 – 24 ½ 2XL 63 – 64 24 ¾ – 25 ¼
