The Tamiya 53921 Front Aluminum Differential Joint is a purpose-built hop-up for the TRF415 family. It lets racers replace the factory front one-way unit with a ball differential layout, delivering more consistent front traction and steadier turn-in across different track surfaces. It is particularly useful where front one-way diffs are restricted and when a more neutral front end is desired in race conditions.
The Tamiya 53921 Aluminum Differential Joint is an excellent option for drivers who want to fine-tune TRF415 handling for competitive events and close technical circuits.
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