Unicycle gear change on Red Menace

Red Menace is a custom unicycle create by Pete Perron, and (when this video was made) owned by me. I sold it and I wanted to document the process of changing gears for the new owner, and for posterity. There are virtually unlimited gear ratios possible, but there are six easily accessible gear ratios which I focus on in this video, ranging from to . These gear ratios all involve leaving two 20-tooth sprockets in place and swapping out the other two for 20, 21, 22, 24, 26, or 28. A chain going from 24:20 gives a 1.2:1 speedup. This happens twice so it is 1.2*1.2 or . Therefore the ratios are: , , , , , and