What wrong with my Zip Zap?
Ok, I have one of those Shen Qi Wei car's and a Zip Zap. On the shen car the gears spin really smooth and the car is super quick. That is stock. With my Zip Zap, the gears are really chattery and aren't as smooth, it also is pretty slow, and that's that it has the turbo motor with the red gears. It just seems really slow and I was wondering what I should check or look for. Thanks.
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