Mini 4WD Precision Spacer M6.4 x 1.7 M4WD-03/GO gold by 3Racing  [M4WD-03/GO]

M4WD-03/GO precision gold spacer M6.4 x 1.7 for Mini 4WD

The M6.4 x 1.7 spacer is a compact dimensional component intended for Mini 4WD bearing stacks and hub interfaces. Its role is to control axial separation between bearing faces or between a bearing and a hub, producing a consistent axle offset critical to tight-stack setups. The gold finish is a surface appearance detail and should not be assumed to define substrate material or protective treatment.

For competitive tuning, this spacer is used where exact spacing affects bearing preload, wheel runout and lateral alignment. It is not a structural reinforcement; apply it as part of measured stack builds and verify clearances during test assembly.

Compatibility guidance: intended for Mini 4WD bearing and axle systems accepting an M6.4 outer interface. Verify hub bore and adjacent roller or chassis clearances to prevent contact in compact assemblies.