Dri Slide also known as bike aid: IronBraid Dri Slide Lubricant
Some HD dealers carry it.
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Lubricating Cables/Throttle - Harley Davidson Community
I must be doing something wrong. When I used Dri-Slide on my CLUTCH cable I experience "chatter" in the cable. The bike was near New and the cable feel was Perfect but I figured what the heck and lubed the clutch cable with Dri-Slide. Why I don't know but I experienced a Terrible chatter feel in the clutch cable. Had to flush it out and use a different lube.
But on Low PSI cables and flexible speedo cables, Dri-Slid works good for me.