This is an optional Team Losi Racing 22-4 Steel Front Pivot Brace. The stock aluminum Font Pivot Brace has been found to be one of the weaker parts on the 22-4, so the TLR development team has found a solution! They have machined a steel version of the Front Pivot Brace for incredible durability. Over the last several months, none of the TLR team drivers have damaged a single steel front pin brace. This is a direct fit upgrade part that requires no other parts or modifications. Features: