Mini 4WD Bearing Stack Spacer M6.4 x 1.7 M4WD-03/PK by 3Racing  [M4WD-03/PK]

M4WD-03/PK pink M6.4 x 1.7 bearing spacer for Mini 4WD use

This single-dimension spacer is intended to locate and preload M6.4 x 1.7 ball bearings in Mini 4WD wheel and axle assemblies. The pink anodised finish is a visual marker and does not indicate different mechanical characteristics; no vendor-supplied material or tolerance specifications are provided.

For experienced hobbyists: fit the spacer where a consistent separation between bearing inner races is required or where a factory spacer needs replacing. Confirm the spacer bore and outer diameter match your bearings and hub geometry prior to installation. Where precise stack height is required, measure assembled runout and axial clearance on a bench before refitting to a running chassis.

Compatibility note: intended for standard Mini 4WD bearing applications. Do not assume compatibility with modified axles or bespoke hub designs without checking. This is an accessory component and does not alter chassis category or permitted modifications.