- Complete Upgrade Kit for TT01 and TT02 RC Cars : This comprehensive set includes 4 drive shafts, 4 joint cups, and 4 differential speed cups, providing all necessary components for enhanced performance and reliability. - Durable Construction : Crafted from high-quality 45 gauge steel, these parts offer superior strength and longevity, ensuring they withstand the rigors of high-speed racing and rough terrains. - Precision Fit : Engineered to fit perfectly with dimensions of 38 x 12 mm, 5 x 12 mm, and 41 x 12 mm, this kit guarantees a seamless installation process, allowing you to upgrade your RC car with ease. - Lightweight Performance : Each component weighs between 35g and 40g, ensuring your RC car remains agile and responsive without the burden of excess weight. - Practical Applications : Ideal for competitive racing, these components enhance torque delivery and reduce wear during high-stress maneuvers. Perfect for hobbyists looking to maximize their vehicle's performance in both casual and competitive settings. - Compatibility and Functionality : Specifically designed for TT01 and TT02 models, this set enhances drivetrain efficiency, leading to improved acceleration and handling on various surfaces. - User-Friendly Setup : With clearly defined dimensions and a straightforward installation process, even beginners can easily upgrade their RC cars and enjoy enhanced performance right away.