Something new by request. Someone on Weight Weenies wanted to add a Di2 Junction A mount under his first generation Enve Garmin mount, This is about as low a profie as you can get. The model actually has 4 little nubs all around, you trim off the three you don't need when you have your Junction A oriented correctly, this allow the same model to be used on both generations of ENVE mounts or with the Junction A either pointing forward or backward.