Almost need to pester Suzuki to drop a software update that allows speed on the dash...lean angle is great and all but- meh.
Or a radar detector with GPS. My escort does.If you can get one that reads obd2 from the diagnostic red connector. It will display rear wheel speed, but only up to 158 mph. Front wheel speed is what controls the speedo on dash, but that doesnt seem to be on the obd2 stream of data.
Mount your phone up there with a gps app
...and make it with an LED rpm indicator with shift light.