Headspeed Calculator (net.idmobile.headspeed) on Google Play
Headspeed Calculator is used to calculate an estimated headspeed for your battery, motor and pinion setup.Enter your battery setup, motor KV, main gear and pinion.Headspeed Calculator will calculate the estimated headspeed, motor rpm and gear ratio depending on varying efficiency and cell load.You can also enter a headspeed to calculate the pinion.