6 foot plank, 20" tires

I noticed as I shorten the rear plank, there's less wear and abuse at the ends. So I tried some Honda Civic temporary spares in a comparison with the usual 12" slicks. As expected, the ride was smoother and quieter than with the gokart tires, and the extra ground clearence was nice. I was surprised by the lower rolling resistance, often the difference between go and no go in light winds. Also surprised by the better bite. Was comparable to sharp versus dull blades. How the setup behaves in winds over 25MPH remains to be seen.