This alloy rear suspension arm set is an RC-scale replacement intended for the Blitzer Beetle family including Stadium Blitzer and Stadium Thunder. Machined from gun-metal colored aluminum, the arms are intended to replace stock plastic components where builders want a firmer mounting point for the rear suspension without altering chassis geometry.
Use and fitment: these arms are produced for 1/10-scale Blitzer-series Tamiya platforms. They serve as direct-replacement hop-ups to provide a stiffer pivot point for the rear suspension, which can change how the chassis reacts under acceleration and on rough surfaces. Confirm fit with your vehicle before final installation, as small variations in shock tower or hinge-pin setups can require minor adjustments.
Installation guidance: remove the stock rear arms and inspect hinge-pin bores and surrounding mounts for wear. Fit the aluminum arms in the same orientation as the originals, check hinge-pin alignment, and verify that travel and droop are unaffected. Tighten fasteners progressively to avoid misalignment, and re-check after a short test run. These arms are a maintenance-friendly upgrade but perform best when paired with properly tuned shocks and regularly inspected mounting hardware.
Tuning notes: because aluminum reduces flex at the rear mounting point relative to plastic, expect subtle changes in traction and throttle response. If the car feels more nervous on high-speed direction changes, consider small increments to rear damping or roll center adjustments to rebalance handling. For bump compliance, ensure shock length and spring rates remain compatible with the stiffer mounts.