Mini 4WD Double Roller 8-9mm Precision M4WD-33/PK for tuning by 3Racing  [M4WD-33/PK]

Tamiya Mini 4WD Double Aluminum Rollers ( 8-9mm )(Pink) - 3RACING M4WD-33/PK
Price:
USD$7.50
Brand:
3Racing
Model:
M4WD-33/PK
Condition:
Brand New
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Racing-oriented M4WD-33/PK double rollers for chassis tuning

This matched pair of double aluminium rollers is machined to an 8-9mm outer diameter and carries a pink anodised surface. They are intended as precise replacement rollers or tuning components for Mini 4WD platforms that accept 8-9mm roller units.

The compact double-roller configuration reduces lateral width while providing two contact surfaces per side, supporting predictable interaction with guide rails. Aluminium stock and anodised finish deliver stable dimensions and wear resistance; these parts are aimed at geometry-conscious setups rather than increased rubber traction.

Installation notes for tuners: verify post bore, spacer stack height and collar clearances for repeatable alignment. These rollers are typically supplied without bearings or fasteners unless specified by the seller; plan your bearing selection and axial spacing to match the target MA, MS, AR, FM-A, VS or Super-II chassis geometry.

What measurements should I check before fitting the M4WD-33/PK?

Measure the post bore, total spacer stack height and any collar offsets. Confirm the 8-9mm external diameter clears bodywork and guide rails at full suspension travel or flex.

Do these rollers alter handling compared with nylon rollers?

Aluminium changes the mass distribution and contact compliance versus nylon. Expect firmer contact and different rebound characteristics; test changes on a measured track before committing to race setups.

Recommended bearing choices for low friction?

Use sealed micro bearings sized to your post and roller bore for smooth rotation and protection from dust. Select internal clearance based on running conditions.

Any cautions when using anodised aluminium in high-contact areas?

Anodise is durable but can show wear where repeated abrasive contact occurs. Monitor contact surfaces and replace if significant scoring affects performance.