I use a Rambone I bought from someone on these forums. It mounts on top of the two front tank bolts. A search should discover the source. There is also Techmount, which mounts on top of the stem nut. With either of those, you could use short extensions to make it as high as you want. I also use a RAM ball mounted on the left mirror housing. There are unused threads for one under the black rubber cap. I prefer my GPS on the left for quick access, and my phone on a RAM X-Mount for charging.
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