Mad Rat Gearing

[Chequered Flag Racing]

club member has a 12 turn sensorless brushelss motor coupled to a Xirius SE2 esc

currently on 21/80 and the esc is running a lot hotter than the motor

what pinion spur should he be on please?

[Dave Dodd]

I think you may need to up the pinion a few teeth, im using a 25t pinion on a 10.5t motor

[Chequered Flag Racing]

thanks, I've forwarded the info