Interesting concept, could magpies activate the bag ?
Did a quick sniff out there and found there are a number of models and the prices is in the $600.00 range. Didn't see anything about the possibilities of reusing it. It'd be a drag out on the trails if it got triggered every time one had a little crash or even hit fast, technical, bumpy sections. Couldn't ride with it inflated so it wouldn't be anything but a burden for the rest of the ride and if it's not reusable or a pain to reset (possibly need to ship it off) it's just not practical. It is a good idea though. It'll be interesting to see where it goes.
would wearing the thick scarf that contains the airbag be just as uncomfortable as wearing a helmet?