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Brushless Duratrax Evader EXT2 - 32 Pitch Spur Gear/Pinion Gear Upgrade. Here is how to easily change out your 48 Pitch to 32 Pitch with a few simple parts. Part numbers listed at the end of the video. I also show a good website to help you calculate the speed of your setup. This can help you to dial in your gearing and batteries for what ever top end you want. *** Please Note *** During my video I mis-spoke when I was describing the Kv of my motor. Kv is the RPM of your (unloaded) motor per volt applied, so that means if your motor has a Kv rating of 3930 and you apply 10 volts your motor should reach 39,300 RPM. Although I meant to say RPM I said Kv instead, I was tired when I made this, sorry. Thanks for checking out my Video, more info on my site www.brushlessrcmotor.com