I use some handy charts to help determine your perfect ratio for the drag strip or Maxton etc.
Save the calculator for your bike on your desktop. Open the file and try changing the sprocket sizes (Secondary Reduction) in the chart to calculate speeds. It shows all gears.
We have added the proper transmission ratios and crank ratios for you!
Your tire size may differ. We paint a line on the tire with silicone, etc. then roll the bike (with the rider in place) to make marks on the floor. Measure the distance between the marks to determine circumference for your tire.
ps. Special thanks to Dave O for supplying the charts AND allowing me to post them!