Advanced Brushless Speed Calculator

Tools/Advanced Brushless Speed

Estimate theoretical top speed from motor KV, LiPo cells, gearing, and tire diameter.

Motor KVkV = RPM per volt. Higher kV = faster motor.LiPo Cellse.g. 2S, 3S, 4S, 6SPinion TeethSpur TeethDiff Pinion TeethDiff Spur TeethTire Diameter (mm)Measure inflated outer diameter

Gear pitch

62.2km/h

38.6 mph

FDR: 8.14 · Motor RPM: 24420 · 3S · 11.1V nominal · MOD 1 pitch

Theoretical maximum — real speeds vary with sag voltage, terrain, and mechanical losses.

Matching motors in this KV range

Matching spur gears

Matching pinion gears

All speed figures are theoretical estimates based on motor specifications and geometry. Real-world results vary.

Speed Estimator →Brushed Speed →