Plenty durable in my experience. I endoed with my Roam early last year (messing with trying to turn it on while bombing down a freeride trail- BAD IDEA eheheh) and it came out fine. I nailed it again a couple of months later during a front wheel washout dealy. That crash snapped the widget that tightens the ball adjuster on their handlebar mount. I contacted Contour and they sent a replacement. I've ridden with it in light/medium rain also and still works like a champ.