1.Durable:Made of high-quality steel material, Hard anodic oxidation and anti-rust treatment on gear surface, long service life for these gears;
2.Work smoothly: The gears are CNC machined, good machining made them roll smoothly;
3.More choices for you:Changing gear ratios can help balance acceleration and top speed for different running conditions.We provide two different teeth to make you more choice in gear ration and torque;
4.Suitable for X-MAXX MAXX E-Revo 2.0 #6447,Please consult your owner's manual for more information on recomzmended gearing options for your specific.