Kyosho Mini-Z AWD Bearing Set AWD-21 Race-Ready Upgrade by 3Racing  [AWD-21]

Compact AWD ball bearing upgrade

This full ball bearing kit is engineered as an aftermarket upgrade for Kyosho Mini-Z AWD cars to reduce internal friction and deliver smoother rotation in compact RC drivetrains. The set is listed as AWD-21 for identification.

Use the bearings to replace tired bushings or worn stock bearings on MR-03 AWD style Mini-Z AWD builds. Correct installation uses gentle pressing or careful seating to protect the races, and frequent light maintenance helps avoid contamination without over-lubricating.

On the setup side, full ball bearings lower rolling resistance and can improve throttle feel and lap consistency at high RPM, which benefits short indoor layouts and carpet racing where drivetrain losses are critical.