Some motorcycle helmets are made of PC+ABS alloy, which is better than ABS. Its strength and toughness have been improved a lot, as well as its low-temperature impact performance. At present, the domestic Austrian energy alloy materials are widely used in helmets.

Motorcycle helmet (standard name is motorcycle occupant helmet) is a head protection device for motorcycle riders. The main purpose of the helmet is to protect the knight's head, prevent or reduce damage and even save the knight's life when being impacted.