In the current scenario, the prices of fuels are gradually increased manner. So, the mileage of the vehicle is most important thing in the way of financial problem. In our project, we reduce the unused torque in our two-wheeler by reducing the diameter and tooth counts of the rear wheel sprocket in the two-wheeler to improve the vehicle performances of speed and mileage. It also gives the positive results to us and the performance of the two-wheeler is always increased. The resultant graph variations are shown in the result and discussion chapter.

Keywords : Rear tooth sprocket, Vehicle performances, Torque, Speed, Mileage.