Features 1、Powerful Transfer: The gear is customised for TA, for TB, for TRF series models to ensure a perfectly match with the model. The large gear design means higher torsion transfer efficiency and stronger power transfer capability, allowing drivers to fully experience the collision of speed and passion. 2、Material: Made of metal steel with excellent wear and impact resistance. With high hardness and great toughness, the gear can maintain stable performance even under prolonged high load run, which greatly extends the service life of the gear. 3、Accurate Machining: Highly advanced machining ensures tight fit and smoothly transferring between gears, which not only improves the transfer efficiency of the gears, but also reduces noise and wear, making your vehicle smoother, quieter and more efficient during running. 4、Easy to Install: Whether you are a professional repairer or an ordinary RC modeler, you can easily complete the installation and maintenance of the gear, which not only improves the performance of your vehicle, but also enjoys the fun and sense of achievement of DIY. 5、Model Accessories: We provide the original gear (66T) with the number 51548 to ensure the reliability and compatibility of the product with your vehicle, providing stable and strong power support for your vehicle, which is an indispensable accessory for RC models. Item Type: RC 66T Steel Gear Material: Steel Inner Diameter: Approx. 9.5mm / 0.37in Width: Approx. 5mm / 0.2in Outer Diameter: Approx. 41mm / 1.61in Package List 1 x Gear