There is actually a lot of animation on this, but it is hidden due to the spinning. =/ While the main cycle is just one rotation, or 1 second, the GIF is 3 seconds so that the mane/tail could be given a bit more random motion and makes it harder to see as a single rotation loop. Another instance of me over-doing things. :3
: Updated the GIF as there was a masking error at the right-most wheel. SFM does not have a chair with an independent base, so the bottom is just a masked picture appearing to be stationary. Missed a bit on the mask, which caused a small flash of a wheel. Minor, but I DEMAND PERFECTION.