420-37D CNC aluminium crown, red

Choose from the drop down the different sprockets according to the number of teeth and the colour. The teeth will mark the transmission ratio that you will apply to the engine when transmitting the power and revolutions to the asphalt. A good adjustment of this transmission ratio will make the difference in the acceleration, top speed, etc... you have to find the right point for your weight, way of riding or circuit where you ride. Parts designed to customize your Pitbike with the best material and a good value for money. Make your Pitbike something personal and that speaks of you. Without giving up the performance. 37 teeth Red