Accelerometers if done correctly do work better and more reliable than brake signal, how do you think the airbags in any car and those fancy ones top riders use in motorGP do actually work.

Not the same purpose, but there is a helmet that has one already.

Never ridden a real motorbike, never listen in physics class. Your car will never be able to break (decelerate) as fast as a real motorbike due to physics; since your car weights a lot more than a bike, given the same speed for both vehicles, yours will carry a lot more momentum of inertia than the bike and thus the…

Better put it towards an artificial skull and don’t worry about what could happen to what’s inside of the original, it was useless anyways.