The RCX10.3 Roller is a high-quality 1:10 scale crawler without electronics, designed for model builders who want to equip and make the model ready to drive according to their own ideas. The pre-assembled chassis with an aluminum frame allows for the quick installation of all necessary components. Included in the package are very soft tires already mounted on the rims, an unpainted hood for customization, and many accessories including LED lighting and a decal sheet. Thanks to the 2-speed transmission, portal axles, metal drive shafts, and locking differentials, this crawler confidently navigates uneven terrain with excellent climbing capabilities. To get started, servos for the differential locks and the 2-speed transmission, as well as steering, motor, controller, transmitter, receiver, and battery are required. A recommended drive combo is a Hobbywing Fusion Brushless Crawler Combo, or in the brushed category, a Hobbywing WP1060 - 1080 combined with a 640 to 755 brushed motor with 35 turns or higher. The best drive battery has proven to be a 2S LiPo 7.4 V with at least 4000 mAh. The runtime with such a battery is approximately 30-60 minutes, depending on the chosen drive and driving style.