The Tamiya Mini 4WD roller stopper in light blue by 3Racing M4WD-11/LB is a targeted upgrade to steady the roller assembly and sharpen handling. It helps racers reduce unwanted sideplay for more consistent lap times.
This stopper is made to integrate with standard Mini 4WD roller setups, giving a simple upgrade path for models that use conventional roller mounts. The light blue finish is subtle and blends well with common paint schemes.
By limiting excessive lateral roller movement, the stopper improves cornering predictability and lowers the chance of the rollers slipping off the track on technical sections. It is particularly useful when pushing speed through tight bends.
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