Tamiya Mini 4WD Low-Profile 17mm Ringless Roller M4WD-31/LB by 3Racing  [M4WD-31/LB]

Tamiya Mini 4WD 17mm Aluminum Ball -Race Rollers ( Ringless )(Light blue) - 3RACING M4WD-31/LB
Price:
AUD$8.88
Brand:
3Racing
Model:
M4WD-31/LB
Condition:
Brand New
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Low-profile ringless 17mm aluminium ball roller M4WD-31/LB for Tamiya Mini 4WD

The 3Racing M4WD-31/LB is a 17mm aluminium ball-type roller engineered for 1/32 Tamiya Mini 4WD vehicles. Its ringless design and light-blue anodised surface aim for a neat appearance and a smaller external footprint when used as an upgrade or spare.

Aluminium construction houses internal ball components that reduce rotational resistance compared with simple plastic rollers. The missing external ring changes how the roller interfaces with stabiliser plates and guards, so inspect post diameter and fastener type before fitting a replacement.

Compatibility targets Mini 4WD racing chassis that accept 17mm rollers. Common checks include shaft/post diameter, spacer arrangement, and stabiliser plate clearance. This part is not intended for Wild or Scale Mini 4WD upgrade paths, which have different mechanical constraints.

Service advice: remove dust and debris regularly and apply a light bearing-safe oil to the internal balls when needed. The anodised finish is decorative and will show signs of wear from heavy contact or solvent cleaning. Verify spacers and screws do not compress the ball assembly during installation.

Which models accept a 17mm roller?

Any Mini 4WD chassis that specify 17mm rollers should be compatible, but always check the post or shaft diameter and plate clearances on MA, MS, AR, FM-A, VS and Super-II platforms.

Will it need extra securing without a ring?

Possibly. Ringless rollers may rely on spacers or collars to prevent sideways movement if your stabiliser plates are shallow. Inspect fitment and add thin spacers if needed.

Best cleaning method?

Blow out dust, wipe with a lint-free cloth and apply a drop of light bearing oil to the internal balls. Avoid solvent soaking that can damage the anodised surface.

How resistant is the colour?

The light-blue anodise is decorative and provides modest wear resistance, but repeated contact or abrasive cleaning will alter the appearance over time.

Is this suitable for Wild or Scale upgrades?

No. Wild and Scale Mini 4WD variants use different dimensions and are outside the recommended use for this roller. Stick to standard Mini 4WD compatible chassis.

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