The concept behind this work is to develop a helical spring for the shock absorber used in the suspension system of a motor bike which is designed to reduce shock impulse and liberate kinetic energy. The main purpose is to select which material best suits the helical spring used as a suspension system in a shock absorber. In automobiles, it decreases the amplitude of disturbances and hence increases comfort, the action is done by dissipation of energy. Spring remains in its normal condition on a level road, called the equilibrium state. Spring action is activated when a vehicle encounters a bumpy or rough surface. Spring compresses first and then, spring restoring force tries to attain equilibrium. The springs can be made lighter by reducing the number of coils and increasing the area, while a similar approach can improve strength. In this work, a helical spring of shock absorber is designed and analyzed for two materials at different loads, Stainless steel and carbon steel, analysis is done theoretically and verified by simulation in Ansys. The comparison in stress and deflection shows that stainless steel material is more suitable than carbon steel for bike shock absorber springs due to Intermediate stress formation and deflection at different loads.