Check the listing for details. POD K4 2.0 Knee Brace Pair, Graphite/Black. Color: Graphite/Black, Condition: New with tags. Listed at 549.95 USD. Motocross knee braces are a type of protective gear that you wear on your legs to help prevent injuries. The POD K4 knee braces are a high-quality option that is both affordable and effective. They have a lightweight composite frame that anchors the hinges and helps to transfer load from the knee joint without affecting how you feel on the bike. The braces also have impact guards that can be removed if needed, and they are suitable for multiple sports and activities. The hinges on the braces have synthetic ligaments made from vectran fibers, which are five times stronger than steel and help to control the motion of the knee. The braces have quick-loc and go straps that are adjustable and can be put on easily, and they have adaptive cuffs that conform to different leg shapes and help to.