That is actually stone chip, but I was doing some gravel that day. To be honest, I have little experience on gravel but plan to work on that quite a bit this summer now that I have a bike that is practically made for it. Before I was on a scooter and it hated gravel. Im going to try to post a pic of my last bike for practice and see if I can figure out how to post as full pic properly this time. Ahh, there we go, I now see the "full image" option.