Speed Calculator

Easy reference for comparing outputs on various kits.


KV rating 140 KV
Voltage 18.5v
Motor poles 14 poles
Drive ratio 3.0:1
Wheel dia. (in) 10 in
0 / 25,000 ERPM
025,000 (cap)
ERPM limit exceeded. Reduce voltage or KV, or increase drive ratio. The VESC will cap output at 25,000 ERPM.
Motor RPM
no load
ERPM
electrical RPM
Wheel RPM
after drive ratio
Est. top speed
mph (no load)