Tamiya 53321 Lightweight Propeller Shaft for Boy's 4WD Tuning  [53321]

Optimise Boy's 4WD Handling with a Lightweight Propeller Shaft

The Tamiya 53321 lightweight propeller shaft is a simple mechanical upgrade that trims rotating weight on Boy's 4WD models to deliver cleaner acceleration and improved corner control.

Practical benefits on track and practice sessions

Lower rotating mass reduces drivetrain lag and allows the motor to reach speed sooner, which helps when exiting corners and when making rapid throttle adjustments during race runs.

Simple fitting and broad compatibility

Fitting the Tamiya 53321 requires only routine hobby shop tools and basic mechanical experience. It is compatible with a selection of Boy's 4WD models and usually drops in with minimal setup changes.