MUGEN MRX-5 Aluminium Rear Upright 7075-T6 - AM-MRX5-H2124 by Arrowmax  [AM-MRX5-H2124]

Role of the aluminium rear upright

This Arrowmax rear upright is produced from 7075-T6 aluminium as an RC-scale replacement for MUGEN MRX-5 cars. The precision parts include two sets of composite rings that interface with the pivot ball to increase sensitivity and encourage smoother movement during compression and rebound cycles.

Swapping in these aluminium uprights in place of plastic originals changes chassis response slightly: increased rigidity gives crisper suspension reaction and a small tendency to push at corner exit under throttle versus softer materials. Use this behaviour when you tune toe, anti-roll balance, or shock damping to regain rear traction.

Fitment is straightforward and uses the MRX-5 wheel hub and pivot ball hardware with no extra machining. For tuning, use the supplied composite rings to adjust pivot compliance stepwise before altering other setup elements.

MRX-5 owners who want a long-lasting metal upright and more precise pivot feel will find the Arrowmax AM-MRX5-H2124 offers consistent suspension behaviour and a manageable change in rear traction under power.