Impact protection tech
Autonomous wearable airbag vest with six gyroscopic sensors deploying within 20-40 ms before impact.
Verdict
The one piece of kit we will not ride without. No tether, no bike integration, no excuses.
Six gyroscopes and accelerometers sample the rider's position continuously; when the algorithm detects a crash signature the airbag inflates in 20-40 ms, before the first impact in most cases.
Because it is autonomous, it works on any bike — including rentals and borrowed machines. That is the entire argument: no tether to forget.
It adds 1.9 kg and needs recharging every 30 hours of riding. In a 10-hour day that is a USB-C cable at lunch, not a problem.
Deployment requires sending the vest to Alpinestars for repacking. Budget for it if you actually crash in it.
Medical protocols and satellite comms
The field guide behind this review.
