offGridDownUnder
1 kW
I have put together a trike with a 'Stoke Monkey' motor. Here is the build thread: Greenspeed trike with stoke monkey
Currently it is running with 16T at the motor, and 22T at the rear wheel: 11:8. I have a GMAC 8T motor.
Justin commented that I consider down gearing. I'm thinking of 20T at the motor, and 30,32,34,36T at the wheel it drives: 3:2 - 9:5.
This design has no freewheel between the rear wheel and the motor so I can take advantage of regenerative braking, so the ratio over-drives the motor RPM when going downhill.
For the GMAC 8T that I have now, and for the newly released Rear All-Axle, what is the maximum RPM each motor may be mechanically driven at before there is trouble due to back EMF, overcharging the battery, mechanical issues, or? I've written to Grin support, any advice about how to determine this?
Currently it is running with 16T at the motor, and 22T at the rear wheel: 11:8. I have a GMAC 8T motor.
Justin commented that I consider down gearing. I'm thinking of 20T at the motor, and 30,32,34,36T at the wheel it drives: 3:2 - 9:5.
This design has no freewheel between the rear wheel and the motor so I can take advantage of regenerative braking, so the ratio over-drives the motor RPM when going downhill.
For the GMAC 8T that I have now, and for the newly released Rear All-Axle, what is the maximum RPM each motor may be mechanically driven at before there is trouble due to back EMF, overcharging the battery, mechanical issues, or? I've written to Grin support, any advice about how to determine this?