Abstract: An all-terrain vehicle (ATV), also known as a quad, quad bike, three-wheeler, or four-wheeler, is defined by the
American National Standards Institute (ANSI) as a vehicle that travels on low pressure tires, with a seat that is straddled by
the operator, along with handlebars for steering control. An ATV that abides by certain rulesets that are devised by the SAE
for a competition is known as BAJAS. BAJA SAE is an intercollegiate competition organized by Society of Automotive
Engineers (SAE) to design, build and race off-road vehicles. Chassis is an important part of the BAJA vehicle that supports
body and other different parts of the vehicle. It also surrounds and protects the occupant in case of impact and roll over
incidents and also gives the aesthetics of the vehicle. These vehicles are designed to run and perform on any surface
irrespective of the ground conditions. The design structure of an ATV solely depends upon it roll-cage. As an ATV is an
experimental vehicle the design procedure of its roll-cage plays a critical role to give maximum possible strength while
keeping the weight minimum. Roll cage of an ATV also absorbs various impacts during an event or in test runs. The aim of
the project is design of Rollcage using the CATIA software and analysis is using the ANSYS software. We select two types of
analysis in this project one is the static load condition and another one is the modal analysis for calculating natural
frequencies of different modes, finally finding out the stresses, strains, and deformations in different cases such as front
impact, side impact, rear impact by using the different materials (AISI 1018, AISI 4130, EGLASS EPOXY, CARBON
FIBER) andfinallyconcluding the material whichis optimum for the Rollcagebased on the values.