**6. Detailed wheelchair design**

The widened rear wheels design concept was further designed in detail. The parts making up the system were sized and materials for the parts selected according to the design standards for mechanical parts. The designed parts were tested to configure if they could withstand the operating stresses and adjustments if any were taken in order to minimize failure of the parts during operation. The main parts are the widened rear wheels, ratchet bar, spring shock absorbers, rear caster wheels and front caster wheels given in **Figure 8**.

**Figure 8.** *Detailed design assembly.*
