3Racing M4WD-03/RE 1/32 Mini 4WD M6.4 x 1.7 ball bearing spacer spare part  [M4WD-03/RE]

3Racing M4WD-03/RE red M6.4 x 1.7 spacer for Mini 4WD bearing alignment

This red M6.4 x 1.7 ball bearing spacer from 3Racing is a low-cost replacement part intended for Mini 4WD assemblies where consistent axial spacing of bearings is required. The component is presented as a dedicated spacer rather than a complete bearing or axle; it is used to control bearing clearance and positioning within wheel hubs, rollers, or gear stacks on Mini 4WD models.

Experienced hobbyists should treat this spacer as a dimensional component: verify the M6.4 x 1.7 sizing against the specific bearing and hub used on the model before fitment. The part is compatible with Mini 4WD builds that accept M6.4-style spacers; it is not a motor, gear, or chassis upgrade, and does not change drivetrain topology on its own.

Installation notes: ensure axial surfaces are clean and bearings are supported during assembly to avoid side loading. Color is purely cosmetic and does not imply different mechanical properties. Use precision measurement when replacing spacers in assemblies where tolerances affect clearance or endplay.