For quite some time I ran my GPS, a Garmin I bought for my old truck, in my tank bag. What I didn't like about that is I had to look straight down which took my eyes off the road for a few seconds. At times the glare from the sun made it very hard to see. Being the cheapskate and tinkerer that I am, I decided to fab my own mount based on others I had seen. I took 0.080" mild steel and formed a piece to fit the top of my fork tube that is above the upper triple clamp. I welded a flat piece to it that the suction cup flat plastic could stick to. I made a power cord that would plug in to my trickle charger lead with a cigarette lighter end attached to the mount with an Adel clamp. I attach the power cord to the frame, leading up to the mount. I bundle the GPS power cord out of the way and I'm set. The first picture shows the view from a riding position. The lower numbers of the speedo are all that are blocked. Next picture is my power cord plugged in to my charger lead and the routing. Next is the mount on my fork tube. Last two are the mount I fabbed and how the cigarette lighter is attached. The screw attaching the clamp on the lighter to the mount is not through the plastic piece, only the metal plate. Doing so would cause air to get under the suction cup allowing it to come loose. It's very stable at freeway speeds and most of the sun's glare is not a problem due to the angle of the screen. I did attach a lanyard from the mount to a fixed part of my bars in case the suction cup lets go I don't lose my GPS.
"in God we trust"