can you put air brakes on a motorcycle?
Yeah ex MOD parrachute strapped on yer back, pull the rip cord and hang on!
You guys left out Chitty Chitty Bang Bang.
They would weigh too much, be too big, and put you over the handlebars every time you used them. Everything is possible, few are advisable. Why not buy a real light bike? A company is making stree-legal versions, see link.