Tamiya 53321 Boy's 4WD Lightweight Propeller Shaft Hop-Up  [53321]

Refine Your Boy's 4WD Drivetrain with a Lightweight Shaft

For racers and weekend tuners, the Tamiya 53321 lightweight propeller shaft reduces rotating mass to help the Boy's 4WD respond faster to throttle and steering inputs.

How weight savings affect on-track performance

Removing rotating mass lowers inertia so acceleration feels snappier and handling becomes more direct. This results in better lap times on compact layouts and less lag out of turns.

Installation notes and model fitment

Installing the Tamiya 53321 is straightforward and uses standard RC tools and techniques. It is compatible with a range of Boy's 4WD variants, usually fitting into the stock drivetrain without major work.