This center one-way tube is an RC-scale replacement part for TAMIYA TA05 family chassis, supplied under 3Racing part number TA05-21/LB. It is an aluminium tube finished in light blue anodizing intended to serve as the centre differential one-way component in the TA05, TA05-IFS and TA05-R assemblies.
The component’s role is mechanical: it acts inside the centre differential to create directional engagement that influences power transfer between front and rear outputs. As a machined aluminium tube it provides stable geometry and repeatable action compared with some softer materials, helping to maintain consistent one-way engagement during setup and tuning routines.
Use this aluminium centre one-way tube when you need a durable, dimensionally stable replacement for centre diff tuning on TA05-series 1/10 on-road cars; it fits the stock centre assembly form factor and is suited to iterative setup adjustments.
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