The Yokomo Z2-503IA idler gear is a finely made replacement part intended to improve drivetrain behaviour on YZ-2 series 2WD off-road cars. It supports steadier torque transfer and can help extend component life during regular use.
This idler gear installs into many Yokomo chassis variants within the YZ-2 family. It integrates cleanly with the stock layout and is suitable for competitive running or weekend trail sessions.
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