This 4pcs set of 12x9mm alloy hex adapters is intended for RC-scale wheel and hub adjustments on Axial platforms listed below. The parts are aftermarket components sold as adapters to alter wheel hex fitment without replacing hubs or wheel hexes.
Use these adapters when you need a different hex interface to fit aftermarket wheels or to fine-tune track width and wheel positioning. The alloy construction helps resist deformation under typical trail and rock crawling loads encountered in scale RC use. Confirm that your wheel hex and hub dimensions match 12x9mm before installation.
Installation is straightforward for experienced hobbyists: remove the wheel, fit the adapter onto the existing hex or hub, and secure it using the original fastening method supplied by your wheel or axle. No additional tools are included, and adjustment may be needed to maintain proper wheel runout and clearances with suspension and steering components.