The El Mariachi Ti only has 586 miles (32) hours on it in the month since I got it, but I figured it should get a little bit of drivetrain cleaning so I pulled the cassette and disassembled it. I find the heavy ridges of gunk which build up along the edge of where the chain can sit amusing, particularly how it starts with super-fine oil laden rouge-like grit at the outer edge and leading to corser sand towards the center.