The WR022X brass rear knuckle arm set is an aftermarket replacement made for AXIAL WRAITH chassis. The six-piece kit fits the rear axle area to hold the axle more securely while introducing concentrated weight where many users tune rear traction and balance.
When fitted the brass knuckles substitute the original plastic or alloy parts and are secured with the supplied fixings. Included in the pack are four stainless steel round head screws (3x8) for the mounting points that need those fasteners. Refer to your chassis service instructions for safe removal of the rear hub and axle before installation to prevent contact with suspension or driveshaft parts.
Tuning advice: placing brass mass at the rear knuckles moves the centre of mass rearwards, which can enhance rear grip on loose ground or inclines and may affect steering behaviour. Make iterative changes and confirm clearance with electronics and suspension travel after installation.
The WR022X brass rear knuckle arms suit modelers who want added rear ballast and a tougher rear axle mounting on supported AXIAL platforms.
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