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Size specific Varia mount for the MY16+ Defy Advanced SL ISP. This mounts to the seat mast and not over the seat mast topper. Uses a single 5 mm x 20 mm socket head cap screw and 5 mm nylon insert lock nut to secure to the mast. Please note that you only need to tighten the bolt enough to secure the mount from moving via vibration.
This product is not affiliated with Garmin, Ltd. or Giant Bicycles, Inc. All logos and product names are the respective marks of Garmin, Ltd., or Giant Bicycles, Inc.