Compatible with Arrma HPI Kyosho Losi Axial Traxxas Tamiya Associated 1/10 RC Car Monster Truck Buggy.
To avoid the ESC/motor overheat,please check the ESC and motor temperatures regularly throughout the run after change the pinion gear.
Note: Please make sure the RC motor shaft have the same diameter; Also make sure the spur gear and pinion gear have the same pitch, otherwise the teeth won't mesh.