This is an RC-scale alloy radius arm set designed for 1/14 scale Tamiya tractor trucks. The package replaces stock plastic arms with alloy units to provide a firmer mounting point for the rear suspension linkages and to reduce flex under load.
The set is sold as a 2pcs set and includes collars, lock nuts and mounting screws as stated in the product name. These components are intended to work with the truck's existing mounting points, providing a direct aftermarket swap that focuses on chassis stiffness and repeatable alignment.
Installation notes: check existing ball bearings and pivot points for wear before fitting, remove the original arms carefully, transfer any required spacers, fit the alloy arms using the supplied collars and lock nuts, and torque hardware to a firm but controlled setting to avoid thread damage. Final alignment should be verified on the bench and rechecked after a short test run.
The tuning role of these radius arms is to stabilise rear axle geometry during acceleration and braking, offering a firmer feel to suspension response and helping to maintain consistent pinion and spur alignment under load.
Use these alloy radius arms when seeking a durable, direct-fit upgrade for Tamiya 1/14 tractor trucks that keeps suspension geometry consistent during tuning and running.
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