The C5 is made predominately of polypropylene, measuring 174.4 cm (68.7 in) long, 74.4 cm (29.3 in) wide, and 79.5 cm (31.3 in) high. It weighs approximately 30 kg (66 lb) without a battery and 45 kg (99 lb) with one.[1] The chassis consists of a single Y-shaped steel component with a cross-section of about 5.5 cm (2.2 in) by 4 cm (1.6 in)[2] The vehicle has three wheels, one of 317 mm (12.5 in) diameter at the front and two of 406 mm (16.0 in) at the rear.[5]