YOKOMO BD5/BD7 44mm Swing Shaft YO-02A by 3Racing  [YO-02A]

44mm swing shaft upgrade for YOKOMO BD5 and BD7

This 44mm swing shaft is supplied as a heavy duty replacement for YOKOMO BD5 and BD7 1/10 on-road chassis. It provides a stiffer driveline option to replace the stock swing shaft and improve longevity under higher load use.

Installation notes: the part installs into the existing steering/suspension carrier and uses the original mounting points and hardware on BD5 and BD7 chassis. Check shaft fit, driveline alignment and running clearance during installation, and confirm that 走珠軸承 (ball bearing) seating and axle alignment are correct before final tightening.

Tuning role: moving to a heavier 44mm shaft reduces flex under increased torque and aggressive corner exits, which can stabilise drivetrain response and help maintain consistent traction on track. Combine this change with basic setup checks rather than expecting a single item to cure handling issues.