Shuttle SE Drive Pulley Hirobo HI0402593 20T  [HI0402593]

Pulley Fit and Replacement Notes

The Hirobo HI0402593 pulley is supplied as an RC replacement for Shuttle SE drive assemblies and carries a 20T tooth count. That tooth count is used to set gear ratio and mesh, not as an indication of material grade.

When replacing the pulley check gear mesh, bearing condition, and shaft alignment specific to the Shuttle SE platform. Remove the old pulley, inspect neighbouring gears and bearings, install the replacement with correct alignment, and verify the assembly turns freely before applying power.

Use this component during planned maintenance or when correcting drivetrain precision. Maintaining correct mesh and component condition helps lower vibration and stops premature wear, supporting stable tuning adjustments.