The Sticky Bottle - -17° Cannondale Hollowgram Knot bar stem system fitted with the integrated mount. Holds a cycling computer and all your devices below with the removable Gopro adapter and also
NEW - Cannondale Hollowgram KNOT System Handlebar - Handle bar width - many size | eBay
Computer Mount for Cannondale Knot Handlebars Supersix - Etsy