Mini-Z MR-03 AWD Racing Bearing Set AWD-20 by 3Racing  [AWD-20]

Kyosho Mini-Z AWD Upgrade ball Bearing Set - 3RACING AWD-20
Price:
USD$7.60
Brand:
3Racing
Model:
AWD-20
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Racing setup notes for AWD-20

AWD-20 is a focused bearing upgrade for MR-03 AWD style Mini-Z cars, specified to reduce drivetrain drag and stabilise rotational behaviour under race loads. The set targets smoother transmission spin and crisper throttle response for sprint and practice environments.

Compatibility: designed for Mini-Z AWD layouts that use MR-03 AWD drivetrain geometry. Bearings are intended to replace plain bushings or worn bearings where dimensions permit, restoring free rotation and reducing parasitic losses in the drivetrain path.

Fitting guidance: press bearings into gearbox housings, hub bores and drive shafts as required, verifying concentricity and free spin. Use minimal, race-appropriate light oil and avoid heavy greases that increase torque loss. Regular inspection for contamination preserves performance between events.

Tuning impact: by lowering internal drag, AWD-20 sharpens initial acceleration feel and improves repeatability lap to lap without altering suspension or steering geometry. Integrate this bearing refresh into a broader drivetrain check when preparing cars for competitive runs.

What tolerances matter when fitting these bearings?

Ensure bore roundness and shaft runout are within acceptable limits; excessive play or misalignment will negate performance gains and shorten bearing life.

Which lubricant preserves low drag for short events?

A few drops of a light synthetic bearing oil maintain low rolling resistance for sprint events; avoid heavy greases that add measurable torque through the drivetrain.

How do I check bearing condition trackside?

Spin each fitted bearing after cleaning; listen for roughness and check for side play. Replace any with noise or measurable looseness to protect drivetrain efficiency.