This is an optional XRAY '25 XB2 Composite 3G Gear Box (Graphite)
Molded composite 3G gear box made from specially-formulated graphite composite material. The graphite molded gear box is lighter and stronger.
All parts fit perfectly together, and the super-easy access to the rear differential will be appreciated by every racer. The durable gear box houses the differential and rear transmission, allows the mounting of the rear roll center holder, motor plate, and rear shock tower.
