7idp m1 helmet replacement visor7idp endeavour to produce the best mountain bike protection on the market the m1 helmet is no exception it has been designed to offer you full face protection in a lightweight package be sure you get the most out of your m1 helmet with this genuine 7idp m1 helmet replacement visor featuresgenuine 7idp visor7idp graphicssturdy and durable replacement visorbuy7idp accessoriesfrom chain reaction cycles the worlds largest online bike store