Kyosho Mini-Z AWD Compact Bearing Kit AWD-21 by 3Racing  [AWD-21]

Mini-Z AWD bearing set details

This full ball bearing set is an aftermarket upgrade for Kyosho Mini-Z AWD models intended to reduce drivetrain drag and deliver smoother rotation in micro RC drivetrains. The kit carries the AWD-21 part code for quick identification.

Fit the bearings when replacing worn bushes or stock bearings in MR-03 AWD style Mini-Z AWD arrangements. Use a small press or careful seating technique to protect the bearing inner and outer races, and maintain performance with routine cleaning and light lubrication applied sparingly.

In tuning terms, full ball bearings reduce internal losses and can make throttle inputs feel crisper while reducing minor power draw at high RPM, which helps on tight indoor tracks and carpet where drivetrain efficiency is more important than outright power.