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

89T Hardened Spur Specified for ENDURO SENDERO

This 89T spur is made for the ENDURO SENDERO Trail Truck and is identified as ES089TS. It is manufactured from hardened steel #45 and intended as a direct-replacement upgrade to increase effective drivetrain torque while leaving the motor pinion unchanged.

Positioned beside the motor gear in the transmission train, this spur requires careful mesh and backlash checks during installation. Moving from the factory 87T to 89T produces a modest improvement in low-speed pulling power and changes driveline loading; inspect pinion mesh, set screws and bearings after initial running.

Use this part when you want slightly more crawling capability or prefer a stronger steel spur for trail and technical driving while keeping your existing gear ratio intact.