The JR-TRX426 is a brass counterweight intended for installation at the steering knuckle on Traxxas TRX-4 chassis, adding concentrated mass to influence steering inertia on scale trail crawlers.
Compatibility: made for Traxxas TRX-4 platforms as an optional steering block / knuckle counterweight. The part typically uses existing knuckle mount points and compatible hardware from TRX-4 knuckles, so routine hobby tools will usually suffice for fitting.
Tuning notes: the additional brass moves mass outward at the wheel hub, which raises rotational inertia and can reduce steering twitchiness while improving low-speed centering and stability; test changes alongside suspension and tyre choices to dial in handling.
Consider this brass counterweight as a subtle tuning component to refine steering behaviour on TRX-4 crawlers; evaluate its effect incrementally while adjusting complementary setup items.
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