4000 kv Brushless Motor

Do u know optimum Gear ratio for 4000 kv Brushless Motor?

Thanks All !!

Around 6.5 to 7.5 Gear ratio .

某d 8.5t 可以行到 5.5-5.8

In my case,lrp tc spec+teampowers 4000kv
With out turbo: 5.8 - 6.2 is better in trc/tc

My case TeamPowers 8.5T, SXX TC, in TRC play 5.7, temperature is about 6x - 70 degree.
Some of my fds play gear ratio 5.5 or even lower...
Heard from some ching said TeamPowers motor is a bit higher torque, so can play a bit lower gear ratio than other same turn motor.

thanks all brother !!