Upgrade your SCX30 RC vehicle with this comprehensive Hot Team gear set package. The set includes multiple gear options with 12T, 13T, 14T, and 16T configurations, giving you flexibility in your setup. Each set features precision-engineered brass axles and durable tungsten steel knuckles with a +4.9mm extension for enhanced performance. The kit includes 5 complete gear sets for maximum customization potential. With dimensions of 67mm to 76.8mm, these parts are designed for perfect fitment. The brass construction adds beneficial weight for improved handling and stability during operation. This professional-grade upgrade package includes all necessary mounting hardware and is manufactured to exacting specifications for smooth, reliable operation. Perfect for RC enthusiasts looking to enhance their vehicle's capabilities and performance characteristics.