Abstract: The frames serves as a framework for supporting the bike and different parts of the bike. Also, it has to withstand shock twists, vibration, and other stress caused due to sudden braking, acceleration and shocking road conditions. Weight reduction is now the main issue in the automobile industry. The purpose of the study is to reduce the weight of the trellis frame under acceleration and braking conditions. Various loading conditions like acceleration and braking were carried out on the chassis and the structural stability of the chassis is analyzed by using alternate material while maintaining the strength. The various materials are studied and the best material will be selected as the solution. Weight optimization is achieved in this project. The 3D model of the chassis is created using appropriate modeling software and its structural behavior is analyzed using Ansys Workbench R21.