Closed up version of the "Door shells with perimeter frame" product.
Uses stock hinges/bolts, with large fender washers to distribute load. Can reuse stock latch (no provision for inner handle) or a slide-bolt.
"Skin only" parts are intended for racing applications where they will be attached with multiple quick-turn fasteners to compensate for slightly more flexibility but saving weight. Be sure to check the rulebook for your race class to make sure they are legal.
These doors were designed to reduce weight compared to the stock doors. They are available in two configurations: 1) with a full inner fiberglass panel having integral arm rests, and 2) with a perimeter frame designed to allow the door to be left hollow.