3Racing CAC-303 Cactus 2WD Rear Mount Racing Upgrade  [CAC-303]

3RACING Cactus 2WD Cactus Aluminum Rear Suspension Mount _RR_3.5degree - CAC-303
Price:
USD$10.10
Brand:
3Racing
Model:
CAC-303
Condition:
Brand New
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Racing setup rear mount for Cactus 2WD

The 3Racing CAC-303 rear suspension mount provides a stable 3.5-degree rear bias for the Cactus 2WD platform, aimed at drivers seeking predictable handling under race conditions. Precision machining and a rigid aluminium profile help maintain geometry under braking and acceleration, supporting consistent lap times.

Performance focused construction

Constructed to support tuned setups, the CAC-303 uses aluminium stiffness to reduce unwanted flex that can upset rear traction. The fixed 3.5-degree angle assists with consistent weight transfer and predictable rear grip during high speed cornering and throttle transitions.

Installation and tuning considerations

Fitment to the 3Racing Cactus 2WD is direct, allowing quick integration into an existing race setup. After installation, verify rear toe and camber and adjust shock rebound and preload to match the new rear bias. This mount is intended as a value racing upgrade for drivers focused on setup repeatability.

How does the 3.5-degree angle affect lap consistency?

The rear angle promotes a more consistent rear contact patch during corner exits, which helps reduce lap-to-lap variability when paired with stable damping settings.

What tuning changes are typical after fitting CAC-303?

Competitors often reduce rear spring rate slightly or increase shock preload to balance the firmer rear mount, and fine tune toe for steering response.

Is the part compatible with upgraded suspension arms?

Compatibility depends on arm geometry. If upgraded arms preserve original mounting points the CAC-303 will fit; verify clearance and pivot alignment before racing.