ENDURO SENDERO 89T Hardened Steel Spur ES089TS by GPM  [ES089TS]

Technical 89T Spur for ENDURO SENDERO

This RC-scale 89T spur gear is specified for the ENDURO SENDERO Trail Truck platform and is listed as part ES089TS. The component is machined from hardened steel #45 and intended as a direct-replacement upgrade to increase effective drivetrain torque without requiring a motor pinion swap.

The spur installs adjacent to the motor gear within the transmission; confirm correct mesh and backlash at assembly. Increasing tooth count from 87T to 89T yields a modest rise in low-speed torque and alters driveline loading, so inspect pinion mesh, set screws and bearing condition after an initial run to verify safe operation.

This part is suited for trail and technical crawling where added low-speed pulling force or a more durable steel spur is desired while maintaining the existing motor gear ratio.