Startup Idea : Reduce Bike Accidents

Normally in 4 wheeler's for example Cars we have the Air Bags I was thinking why cannot we do the same for 2 wheeler. If we be able to do that we can save many lives and this start up will be an idea to the Mechanical Companies and they will develop this for 2 wheeler. My Solution for this : We can put some Sensors with in a range , when the machine detects the Frequency of Sound immediately a balloon will open which will be placed at the Leg Brakes and it will surround the person in a circle format , because even though if he fell on the road nothing will happen as we will be making the balloon with necessary spring action and necessary precautions in the ballon .