NEXX Racing Shim Set 20-Piece

The NEXX Racing NX-189 is a 20-piece set of 2.5×4.2×0.35mm precision shims for Mini-Z chassis and suspension tuning. Shims this size are commonly used to fine-tune bearing and axle spacing, suspension arm play, and gear mesh clearance — small adjustments that can noticeably affect how smoothly a car rolls and how consistent its handling feels.

Having a set of 20 on hand means you're never short when a build calls for stacking multiple shims to dial in a precise fit, or when you're setting up several cars at once. At 0.35mm thick, they're sized for fine adjustments rather than bulk spacing, giving you finer control than thicker washers would allow.

A handy addition to any Mini-Z racer's spares box for suspension tuning, bearing setup, or general chassis maintenance. Sold as a set of 20.