All it takes are a few bungie cords, a bit of cross-linked chain, and the patience to spend a couple of minutes hooking them together. You can get all of that the hardware store for a couple bucks. (Except the patience.) In the end, you get that little bit of extra traction that could save you from embarrassingly GIF-able spills or worse, a fractured tail-bone.
Hop on over to Instructables to see the full how-to guide. [Instructables]