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Finally my "DIY RC Street Racing Car" project is done and the car is working as showed in the video. I had problem to source the 14T 2mm Pinion Gear from hobbyking.com. Printing it from the STL model (found in the forum here) lead to gear a meld down disaster. I finally found a solution with following parts:

  • 14T 2mm Pinion Gear: "Wltoys L959 RC Car Spare Parts Motor Gear 14T L959-34"
  • 61T gear from "51004 Tamiya TT01 G-Parts"

I had to drill a 2mm hole into the rear axle to fix the gear with a bolt.