The "'profile angle "'of a gear is the angle at a specified pitch point between a line tangent to a tooth surface and the line normal to the pitch surface ( which is a radial line of a pitch circle ).
22.
Curiously, the Thai-made Fiesta versions both saloon and five-door hatch feature a 100 mm pitch circle diameter ( PCD ) wheel lug mount measurement identical to the Mazda2, as opposed to the 108 mm one as found in other global versions.
