Wheelchair side plate

A wheelchair comprising:

• a frame connecting a plurality of wheels, wherein a side of the frame comprises a plurality of frame holes;
• and
• a side plate connecting a seat and a backrest to the frame and configured to allow an inclination of a seat relative to the frame and an inclination of a backrest relative to the seat to be adjusted, the side plate comprising:
• a first hole configured to receive a first fastener connected to the seat, wherein a first portion of the fastener is configured to be inserted through the first hole and through a frame hole of the plurality of frame holes and a second portion of the first fastener is configured to be inserted into a cavity disposed within the seat, wherein the inclination of the seat relative to the frame is fixed based on the frame hole of the plurality of frame holes through which the first fastener is inserted, and
• a rear edge comprising a plurality of slots configured to receive a second fastener connected to the backrest, wherein the inclination of the backrest relative to the seat is fixed based on the slot of the plurality of slots through which the second fastener is inserted.