Saddle to handlebar reach is defined as the distance from the tip of the saddle to the center of the handlebar. This measurement is also available as the horizontal component of this distance and also the distance from the tip of the saddle to the back edge of the handlebar.
Q factor is the distance between the two outer faces of the crank arms where the pedals are attached. Q factor is measured parallel to the bottom bracket spindle.
The angle of the brake hole for caliper brakes on rigid forks can be controlled in the θ input field in the Forks dialog box .