The Kyosho FA523 Battery Spacer FZ02L is a simple insert that helps model builders get battery placement right inside the car. It is aimed at those who need to tweak centre of gravity or make the pack sit more securely during aggressive running.
Installing the FA523 spacer gives you a reliable way to move the battery into an optimal spot, which can stabilise handling and reduce unwanted movement. It works well for fine tuning when precise weight distribution matters.
Made to match the Kyosho FAZER RAGE 2.0, the FA523 spacer fits a number of similar chassis types. Installation is quick and typically requires no special equipment, so it is a convenient tuning part for weekend hobbyists.
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