NEXX Racing Ultra Ceramic Ball Differential

The NEXX Racing NX-126 is the MM-length version of NEXX Racing's "Ultra" Ceramic Ball Differential, a low-cost, high-effect way to add speed, handling, steering feel, and tunability to your Mini-Z race car. It features a high-precision stainless steel axle, a Delrin spur gear, and ceramic diff balls, with highly polished, high-precision pressure plates at the heart of the differential for smooth, consistent power delivery.

Lightweight center components and a center spur carrier bearing keep rotating mass low, while the gold-anodized finish gives it a premium, race-ready look. A properly tuned ball differential smooths out power delivery through corners and off the throttle in a way a stock gear diff can't match, making it a favorite upgrade among competitive Mini-Z racers.

NX-126 is the standard (MM) length; a 4mm-longer (LM) version is also available for LM-wheelbase chassis. A worthwhile upgrade for racers chasing more consistent, tunable power delivery out of corners.