I bought it for 6,050 yen, but I'm selling it because I won't be using it. Dixna GRM/GP Mount An aluminum mount that allows you to simultaneously attach a GARMIN (Edge 500-800 series) and a GoPro to the handlebars. It can be set in the center of the handlebars, and the GoPro angle can be adjusted without tools. A mount that can simultaneously record GPS data and video. Color: BK Compatible with GARMIN (Edge 500-800) and GoPro 31.8mm (22.2mm and 25.4mm compatible with included spacers) 73g (body) Weight capacity: 350g Distance from the handlebar mounting band center to the GARMIN mounting center: 28.6mm Forward and backward movement range between the handlebar mounting band and the main body mounting part: 10mm GoPro forward and backward swing angle: Approximately 130 degrees Please check the installation yourself.