Using the Switchblade MIPS bike helmet is easy. First, make sure the helmet fits well on your head using the Roc Loc Air DH fit system. If you're going for a downhill ride, keep the chinbar on for extra protection. When it's time to climb, you can quickly remove the chinbar by pressing the buttons under it, rotating it up, and taking it off. Reinstall it in the reverse order. As for maintenance, regularly check the helmet for any signs of damage like cracks or dents. Clean the helmet with a mild soap and water, and let it air - dry. Avoid using harsh chemicals as they can damage the helmet's materials. Remember, this helmet is designed mainly for downhill and climbing, so don't use it for other extreme activities not recommended by the manufacturer.