The garmin virb tube mount capture your entire adventure with this large tube mount that secures your compatible virb to your bike or other large tube sporting equipment secure your device in the mount using the inserts the mount can be used on large tubes from 075 inches to 15 inches including handlebars seat posts roll bars and more interlocking joints that grip in place instead of relying solely on tension provide a durable anti vibration performance garmin virb tube mount fea