Amazon.com: VeloChampion Out Front GPS Computer Handlebar Mount Compatible with Garmin 130/530/540/820/830/840/1030/1040 and Edge Explore. Suitable for Handlebars up to 35mm : Sports & Outdoors
Amazon.com: Compatible for Garmin Edge 840 Solar Case, Lamshaw [2+1 Pack] Tempered Glass Film + Silicone Case Cover Compatible for Garmin Edge 840 Solar/Edge 540 Solar (Black case+2 x Tempered Glass Film) : Electronics
7 Differences between the Garmin Edge 1000 and 820 Bike Computers