The TT02-13100_13115-LB replacement assembly fits the TAMIYA TT-02 1/10 scale chassis and pairs an aluminium main shaft with a steel joint to limit wear where the shaft meets drive components and to provide a firmer coupling than stock plastic pieces.
Used as a cost-effective reinforcement inside the gearbox area, this part helps stabilise the drivetrain under heavier loads from upgraded motors or more assertive driving. The component comes in light blue and is intended for scale RC use only.
Installation is a like-for-like swap for the original TT-02 shaft and joint. This upgrade focuses on fit and alignment rather than altering gear ratios, so you should expect durability improvements and less flex rather than changes to top speed or gearing.
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