The GoPro Pro Handlebar/Seatpost/Pole Mount is a compact aluminum mount designed for serious riders, fitting 22.2 to 35mm diameter tubes. Lock down securely with the included 4mm hex key and rotate the camera 360° for unlimited capture options. If your best days are spent on two wheels, look no further - this mount is engineered to withstand whatever vibes the road, mountain or dirt can dish out.