This paper consists in a definition and analysis of rear suspension geometry to an off-road vehicle. The suspension selection was accomplished through the study of its geometric characteristics to design its dimensions and position of installation in the vehicle according to the expected behavior. The current suspension of the vehicle, on the front and rear axles, was analysed for understanding its dynamic behavior. The vehicle submitted to analysis was a “Mini-Baja”, off-road prototype, which is used to run nationals competitions between engineering colleges. Its top speed is 50 km/h and its turn diameter is 8.2 m.