The Traxxas 8265 TRX-4 bearing kit includes a complete set of high-quality replacement bearings designed to keep your RC crawler running smoothly and efficiently. These precision bearings help reduce friction, improve drivetrain performance, and extend the life of moving components during demanding trail runs and crawling sessions. Manufactured to Traxxas specifications for durability and a precise fit, this kit is ideal for routine maintenance, rebuilds, or upgrades. Compatible with Traxxas TRX-4 models including the TRX-4 Defender, TRX-4 Ford Bronco, TRX-4 Sport, TRX-4 Tactical Unit, and other TRX-4 platform vehicles requiring the factory bearing set.