RE: Chart of motor/pinion/spur/esc/battery setups of all popular rc cars & trucks!
This is a nice chart. It would have a lot of meaning if the tire diameter along with speed was included.
Point being that I can have two identical set-ups (possibly one with 4:1 ratio and the other with 2:1 ratio) one vehicle is twice as fast as the other. For a given vehicle could be geared anywhere in is physical range and be perfectly acceptable for varying conditions.