The Tamiya 3451516 Center Pulley is tailored for the TRF421 chassis and features a 20-tooth arrangement to promote steady drivetrain behaviour. It is aimed at drivers who want dependable power transfer and fewer drivetrain surprises on the circuit.
The 20-tooth setup helps smooth out power delivery to the wheels and reduces uneven wear across gear faces. That optimisation supports more predictable handling through varying track conditions.
Designed to align with the TRF421 gear train, this pulley fits without the need for alterations. Its correct fit simplifies installation during maintenance or an upgrade cycle.
Made from durable materials, the pulley resists deformation under load and holds its profile over many sessions. Reliability like this keeps service intervals simple and predictable.
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