This JR-TRX4M02-BK kit provides brass front caster blocks (C-hubs) engineered for 1/18 scale Traxxas TRX-4M models. Supplied as direct-replacement components, they fit the TRX4M Bronco and TRX-4M Defender and carry a black finish.
Functionally the C-hubs set the caster geometry for the front wheels and interface with steering knuckles and hub carriers on the TRX-4M front axle. The heavier brass changes the system mass and yields a different wear profile compared to standard plastic items, influencing steering feel and front-end comportment on technical trails.
Installation guidance: confirm fit against the OEM C-hubs, inspect servo and steering link clearances, and ensure screw alignment matches the TRX-4M mounting pattern before final torque. The product is intended as an RC spare for hobby use only.
Compatibility: Traxxas 1/18 TRX4M Bronco, TRX-4M Defender.
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