Tamiya 3RACING M4WD-31/LB 17mm Ringless Aluminum Rollers Light Blue  [M4WD-31/LB]

Summary of the Tamiya 17mm Ringless Ball Race Rollers in Light Blue

The Tamiya Mini 4WD 17mm Aluminum Ball Race Rollers in light blue are a compact tuning part aimed at improving track behaviour. These ringless rollers focus on lowering rolling resistance and smoothing corner transitions to help maintain momentum through technical sections.

Construction and Chassis Fitment

Built from lightweight aluminium for a balance of stiffness and minimal mass, the 17mm diameter is tuned to keep steady contact with the lane. They fit common Mini 4WD platforms such as MS, MA, AR, and VS chassis and can be integrated into most standard setups with minimal adjustment.

Track Benefits and Handling

Removing the outer ring reduces rotating mass and drag, which can sharpen acceleration out of turns and stabilise line holding. These rollers are particularly useful on tracks with tight bends and chicanes where reduced lateral play helps lap consistency.