Nor-Cal Hobbies Gears

Nor-Cal Hobbies "Gears" app is an R/C car and truck gear ratio and rollout calculator. Enter the transmission ratio, spur, and pinion to generate a table of gear ratios. Enter the tire diameter to get a table of rollouts. Designed for the R/C car or truck racing nut looking for a super easy way to determine gearing on your Android phone right at your pit table.