Zamp RZ-67D Helmet - Matte Carbon MAN46620ST-8 They are made from specially

They are made from specially heat treated 100% aircraft quality bar stock material

instrumentation and can withstand 100psi of boost pressure

Dial-In Board Cage Mount

31 or 33 spline carrier into a 3

Zamp RZ-67D Helmet - Matte Carbon MAN46620ST-8 They are made from speciallyEngineered for performance, Zamps newest premium DIRT helmet, the RZ 67D is built for serious drivers who demand comfort, airflow, and cutting edge technology. Features: DDAIR SYSTEM New 360 Dual Density Air Channeling for superior forced air cooling Large Weave Carbon Mix Shell Ultra lightweight & durable 28 Series Color Matched Interior Premium color coordinated plush, removable, washable, fire retardant crown liner and cheek pads Dual Chin Curtains