BARNETT Clutch Kit 303-90-10058 XD-4/VX-Pro3/VX-Pro4 Helmet Liner — S Friction plates feature carbon fiber

Friction plates feature carbon fiber material for improved clutch feel and performance

Internal Air Channel — Improved ventilation with an enhanced air extraction system

making it easier to get the helmet on and off yet remains secure with the FCS2 cheek pads

so as to not snag on impact which could send energy into the helmet or cause excess rotational force

Progressively increases pressure as rpm increases

BARNETT Clutch Kit 303-90-10058 XD-4/VX-Pro3/VX-Pro4 Helmet Liner — S Friction plates feature carbon fiberMade in the U. S. A. Complete Dirt Digger clutch kits also available; include friction plates, steel drive plates and springs