This front C hub carrier is provided as an aftermarket replacement suitable for HPI Bullet models listed as BULLET 3.0 MT and ST (Nitro Engines). It is described as a black alloy front C hub carrier that mounts the steering knuckle and connects the wheel hub to the vehicle's steering and suspension linkages.
When used in setup and tuning it establishes the hub mount points and affects alignment, bearing preload, and steering response. Fit using correct fasteners, check clearances prior to operation, and use common hand tools like a hex driver for removal and installation.