Graphite back Brace had been redesigned included in the fully adjustable battery mounting system that not requires an O-ring or tape to secure the pack and features low profile lightweight bushings that replace M3 peanuts for a sleeker look and lower CG. The rear link brace integrates because of the part braces within the Multi-Flex modification. The brace additionally serves as the mounting point the side tubes, side springs and human body articles. CNC-machined from 2.5mm premium-grade graphite product.