Abstract: A horizontally extendable retrofit assembly for a helmet visor that extends for protection of the wearer's the face. A retrofit visor attachment for a helmet visor includes a flexible polymer visor shaped to connect to existing fixed helmet visors commonly found on motocross helmets. Such an add-on will fit a multitude of helmet configurations. The retrofit includes a visor and a stowage mechanism for enabling the visor to extend and retract underneath the preexisting fixed visor. When in the usage position, the retrofit visor increases the horizontal surface area of visor-retrofit combination so that the amount of protection provided by the fixed visor is substantially increased. Thus, so is the amount of protection to the exposed portions of a wearer's face.