Fit the GPM Aluminum Pendulum Wheel Knuckle Weights to a Traxxas TRX4 to gain controlled, tunable ballast at each wheel. The design is intended to help the truck settle and maintain traction when picking lines on rough courses.
Designed specifically for TRX4 knuckles, the units mount to the front and rear outer case; installation is straightforward and reversible if you want to restore stock geometry later.
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