brass battery tray
i was at the paris race i tested the car with and without brass battery tray i could not tell a differance on the way the car handled.it worked fine for me ive been using them in my 4x allso no differance there either.i like the weight in the center and bottom of the car....thx hope this helps u guys and gals to test it for your self make your own minds up thx have a good day