Camber Angle
The mainwheels of a racing wheelchair are cambered for a number of reasons, of which the most important is to allow maximum application of force to the pushrim.
Figure 27.3 shows a rear view of a wheelchair athlete in a racing wheelchair.
With the wheels cambered, the hands fall naturally to the handrim.
The majority of athletes use camber angles between 6 and 12 degrees, with 8 to 10 degrees being most popular.