Kraton Arrma kraton 6s speed gear

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Is it bad to use the speed pinion gear on the arrma kraton 6s? I upgraded center diff and thicker oil but will it mess it up if I use on and off road?
Watch those motor temperatures! Speed pinion was not intended for max throttle continuous use.

Might want to lower the timings on the Firma 150 as well. đź‘Ť
Ok, I have duel fans on the motor. Does that help?
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