The GO BIG Pro Saddle Rail Mount is designed to lock your Go Pro interface action camera or light securely under your saddle with unquestionable reliability. All-aluminum design improves video clarity by removing the "plastic mount shake." - Fits all standard 2-rail saddles including oversized carbon rails - Compatible with all GoPro Cameras, and like cameras utilizing the GoPro Interface - Adjustable vertical angle position - Gives the Tour de France Go Pro angle of oncoming riders behind you - The K13-1430 available in anodized Black only. - 38 grams