Check the listing for details. SRAM QuickView Bicycle Computer Mount 31.8mm for Garmin Slip-free Mountain Road. Color: Black, Condition: New. Listed at 10.49 USD. NEW SRAM QuickView 1/4-Turn Computer Handlebar Mount for Mountain and Road Bicycles. Specifications: Material: Polyvinyl Chloride Applicable: Handlebar Caliber 31.8mm.Color: Black Applicable Model: Garmin Edge 20, 25, 200, 500, 510, 520, 800, 810, and 820 (Garmin Edge Computer sold separately)Bryton Rider 20, 21, 30, 35, 40 (Except 50) Features: - Fits 31.8mm bars. You could also use a shim with 25.4 bars (not included).- Lightweight, very stiff and easy to fit via a hinged mount which easily goes around your handlebars. - It will not flex even on very bumping road, that makes you always read the computer clearly. - This mount will secure your Garmin Edge in front of your handlebars to minimize head movements during hard miles and allow you to concentrate on the road ahead. Package Includes: 1 x Hinged Mount for Garmin Edge