HJC HJ-27 Base Plate Kit (510-100) ~ 0944-0505-00; Black, One size fits all

* Works with: DS-X1 helmets * Includes two base plates (one for each side) and screws * Buy replacement base plates when your old base plates don't give good ratcheting action for your shield or if your old base plates get broken "Need help picking the right shield/base plate/sun visor?":http://www.motorcyclegear.com/info_pages/faq_helmet_parts_cross_reference.html Here is a link to HJC's website where you can download helmet manuals by model. You’ll find information on installing and removing shields, base plates, cheek pads, chin curtains, etc, as well as helmet care and cleaning.