Mini 4WD Technical Roller Stopper M4WD-11/BK by 3Racing  [M4WD-11/BK]

Tamiya Mini 4WD Roller Stopper (black) - 3RACING M4WD-11/BK
Price:
USD$3.10
Brand:
3Racing
Model:
M4WD-11/BK
Condition:
Brand New
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Technical notes for M4WD-11/BK stopper

The 3Racing M4WD-11/BK is a compact black roller stopper designed for 1/32 Mini 4WD platforms where minimal contact profile is required. This technical note treats the item as an accessory for hobbyists and tuners assessing fit and interference rather than as a dynamic performance component.

Application: use where low visual impact or tight clearance is a priority. Inspect chassis mounting hole pattern and confirm spacer thickness to maintain clearances between the stopper and nearby rollers or body panels. This text provides compatibility and installation considerations but is not a step-by-step assembly guide.

For tuned MA, MS, AR, FM-A and related chassis, validate the stopper location during track testing to ensure it does not impede roller movement or contact surfaces. Avoid applying these tuning points to Wild Mini 4WD or Scale Mini 4WD ranges without checking their distinct mounting geometry.

What chassis hole spacing is most compatible with M4WD-11/BK?

Compatibility depends on standard Mini 4WD hole patterns; measure the chassis mounting points and compare to the stopper base. Use spacers to adapt minor differences in spacing.

How should I set spacer height to avoid roller contact?

Select a spacer height that keeps the stopper clear of rotating parts while providing the intended contact point. Start with thin spacers and increase as required during mock-up testing.

Are there recommended screws or thread sizes?

Use chassis-compatible machine screws that match existing thread sizes; avoid over-tightening to prevent distortion of mounting points.

Maintenance advice for long-term fitment?

Periodically inspect for wear, check that the stopper has not migrated, and ensure it is not creating unintended contact with body panels. Replace or adjust spacers if rubbing is detected.