Blitzer Beetle / Stadium Blitzer Rear Knuckle Arms, Light Blue Aluminum - JR-TASB04-LB by Jazrider  [JR-TASB04-LB]

Light Blue Aluminum Rear Knuckles

This RC rear knuckle arm upgrade is finished in light blue anodized aluminum and intended for hobby use on the referenced Tamiya models. The aluminium construction provides a firmer mounting point for the rear suspension compared with the stock plastic arms, reducing flex under load and delivering a more responsive rear-end feel during cornering and traction changes.

Compatibility is restricted to the models listed in the product title: Blitzer Beetle, Stadium Blitzer and Stadium Thunder. Do not attempt to fit these arms to other chassis without checking mounting points and dimensions against the originals.

Installation for a competent hobbyist is straightforward: remove the rear hub carriers and the stock knuckle arms, confirm left and right orientation, transfer any bearings or retainers from the original parts as required, and fasten the aluminum arms with the existing hardware. After assembly, check pivot freeplay and suspension travel and re-tighten fasteners to the vehicle manufacturer's recommended torque values.

Tuning note: replacing stock plastic knuckle arms with aluminum reduces compliance at the rear upright, which can sharpen initial turn-in and stabilise rear traction under throttle. Use these arms alongside shocks, springs and tyre choices to achieve a balanced handling setup rather than relying on them as a single cure-all.