The JAZRIDER JR-M705-GU is an aluminium rear suspension arm set produced as an RC-scale replacement for the TAMIYA M-07 chassis. Its gun metal finish and aluminium construction are intended to offer a stiffer mounting point compared with typical plastic arms, helping to stabilise rear-end behaviour during setup changes.
Designed specifically around the M-07 geometry, these arms are intended to use the stock mounting points and hardware, so replacement is a direct swap without modifying the chassis. The part focuses on chassis response and tuning: stiffer arms reduce flex under load which can make damping and toe settings more predictable on track.
Installation notes: remove the wheel and loosen the rear hub carriers as needed, then replace the original rear arms with these aluminium units using the existing screws and pivot hardware. Check existing pin and bearing fit during reassembly and verify full range of suspension travel before running.
Tuning role: this arm set is a straightforward hop-up for drivers seeking crisper rear response. Expect the upgrade to interact with shock tuning and toe adjustments, so retune camber and rebound as needed after fitting to find your preferred balance between traction and precision.
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