I spent a couple hours digging around for this. The P/N 21 in that image is what I referred to as vertical holders, they are currently connected to air. Thanks so much.
I cannot recommend the Beartooth Highway enough, especially on new supersports. I drove out there in April of 2010 and it was closed. I did however get to drive up to it on Chief Joseph Highway just NW of Cody - another amazing road. I was on my winter tires and had to turn around after the snow got too deep.
Seems I don't believe those road closed signs often. This trip on the way out on US 12, there was a road closed sign that was rather vague, so we drove to the end and discovered the road was under water. The fun was driving back from that point on a totally empty perfect highway - gave me a chance to get up to speed for a bit.