Racing Tools

Calculators and tools to help you dial in your Yokomo SO setup

Practice Timer

5-10 minute timer with alarm for practice runs

Calculate gear ratio, FDR, and motor RPM for your Yokomo SO with Hobbywing motors

Pinion Gear (teeth)

Typically adjusted for track conditions

Spur Gear (teeth)

Usually stays constant

Motor

Battery

Motor Timing (degrees)

20°30°50°

Factory default: 30°

Gear Ratio

3.64:1

Final Drive Ratio (FDR)

9.45:1

Includes 2.6:1 transmission

Motor RPM

72,028 RPM