This alloy motor spacer and matched gear set is designed for Kyosho Mini-Z AWD cars and supplied as 1 pr. It positions the motor to align the pinion with the main spur on MR-03 AWD platforms, helping to stabilise gear mesh and reduce uneven wear under racing or practice use.
The kit pairs an aluminium spacer with three motor gear choices and the matching main gear pairings shown in the product title, letting you change final drive ratios by swapping pinion sizes without modifying the gearbox housing. The aluminium construction keeps axial alignment under load and is less prone to deformation than standard plastic mounts.
Installation notes: remove the stock motor mount components, fit the spacer between the motor and chassis to obtain correct pinion engagement, then install the selected motor gear so it meshes cleanly with the chosen main gear. Check backlash and endplay after assembly and confirm free rotation before running the motor. Use appropriate thread locking where required and avoid forcing the gears together to prevent premature wear.
Tuning role: changing pinion and spur combinations modifies acceleration and top speed on micro track layouts, while the spacer maintains consistent mesh during repeated tuning changes. This component is intended for RC Mini-Z AWD race and practice cars and is not for full-size applications.
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