To anyone using this chart, note that the resistance numbers are related to length measured in FEET, not inches. You'd be hard pressed to find more than 3 feet in any single wire run on your bikes. This isn't a big deal since resistance in a short distance is much less. Just didn't want anyone getting too far into their project before they discovered they were using super fat wires.
Also, there is the additional issue of abrasion, especially in the wire bundle that runs past the steering head. Lots of flex + lots of dirt in a tight space can equal abrasion. My father is learning this lesson on his recently purchased KLR. He definitely has his winter project laid out for him this year.
"Yes. It looks insubordinate, but it isn't really." - T.E. Lawrence