Abstract: A brake caliper body includes: an opening arranged to receive a portion of a brake disc, the position of the brake disc within the opening, in use, defining a brake disc envelope; at least one pair of coaxial piston bores disposed one to each side of the opening, each piston bore having a closed end defining an end face; and at least one mounting hole. A center of each piston bore end face coincides with an ellipse defined around the brake disc envelope, the ellipse having foci lying within the brake disc envelope and the ellipse being sized to coincide with lengthwise extremities of the disc envelope. The ellipse intersects or is tangential to the or each mounting hole.