Mini 4WD trim weight 9g M4WD-39/BL by 3Racing  [M4WD-39/BL]

M4WD-39/BL 9g cuboid weight for Mini 4WD balance

The M4WD-39/BL is a compact black cuboid mass damper with a nominal mass of 9 grams. It serves as an aftermarket weight for Mini 4WD frames and bodies where small, targetted mass additions are required. No mounting fittings are included, so installation will depend on the chassis design and the builder's preferred attachment method.

Model builders use this block to refine static balance and tweak local mass distribution rather than as a direct performance enhancer. Its effect varies with chassis geometry, roller layout, and the overall tuning plan. It is commonly used in setups where fine incremental changes improve handling.

Compatibility notes: check body shell clearance, potential interference with rollers or guide stays, and available mounting points before permanent installation. Although labelled for Mini 4WD use, verify fitment on your particular chassis.