The JR-M702-GU is a precision-machined gun metal aluminium rear hub carrier that serves as a direct replacement for the TAMIYA M-07 plastic carrier. It provides a firmer mounting interface for the rear suspension and wheel hub assembly, which helps reduce flex and maintain consistent rear geometry under load.
Installation notes: disassemble the rear suspension, remove the stock carrier and transfer wheel hub components and bearings into the new aluminium unit. Verify bearing seating, spline and axle alignment, and torque fasteners to recommended values to avoid preload. Standard hobby hex drivers and bearing pliers are sufficient for the swap.
Tuning considerations: the alloy carrier raises rear-end rigidity, which can modify traction and steering balance. Use this component as part of iterative tuning alongside damper valving, tyre choice and toe adjustments to achieve predictable handling.