In this Work Bench video, we look at the new Viper Scale Racing Motor Brush Pre-Seating Tools. Cuts the time needed to arc in the endbell motor brushes. The old skool method required hours of run-in on a low voltage break-in box. Now, with just about 30 seconds of work, you can cut the brush arc near perfect. Assemble the car and run it. Top speed in minutes!!
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