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Originally Posted by MikeyLikesItSI
Brian thanks for the quick response and insight. I must say the reason for my gear ratio was to try to over come the cogging issue. I figured larger pinions (which if i read your response correctly, would help reduce heat from the motor) would make it cog worse since it required more torque to turn the driveline
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Well, you are right. If geared too high, the motor doesn't turn enough from a stop so the ESC can get feedback pulses from the motor. However, you have it geared low enough that it ends up spinning too fast at high speed. IMO, it sounds like the motor doesn't have the start torque it needs (and cogs) but then spins too fast once it gets going. You could have weakened the magnet with the heat which would also affect both cogging and heat.