Detailed Explanation

Hit Air airbag gets activated by the force resulted from the motion when the rider is being thrown off this bike, this will in turn pulls out the key ball from the key-box, and the mechanism will puncture the gas cartridge,  regardless of any angle and direction.

Normal habits such as sudden standing on the bike, or forgetting to release the buckle will very unlikely to activate the air bag, because the force required for activation have to be more than 30kg.

Please do note that Co2 Cartridge can only be used once, and it must be replaced after checking air bag for damage.