I want to know what a solution to this is. Where to mount it and what to use since the Road Glode does not have an open gauge to remove.

Is the only option a dip stick style? That would be hard to monitor.

 

Could use one of the rocker box gauge mounts and put whatever gauge you want in there.

 

How well can it be seen while riding though?

 

You can see them just fine. Move your leg out and it's right there.