I’ve had the seat off 3 times in the 2890 miles that’s on my bike. This past time I removed the seT to install the show chrome rear seat tie downs, it was very dirty under there. Been around 1000 miles on this go around. The top of the fuel tank was especially thick in a fine sandy dust. I haven’t driven in the rain but have driven on slightly wet streets after a mild shower. I’m assuming all this dust is slinging up from the rear tire. If all this dust is coming from the front my air filter will be clogged in no time. I also have the show chrome front fender extension to prevent a lot of the sling up from the front and I do not ride on dirt roads. Is this pretty common for you high mileage riders?