E-Z II Sportsman: 20° layback for most stock-car applications including dirt and asphalt late models, modifieds and legends cars.

E-Z II Sprint: 10° layback for sprint car applications including dirt and asphalt sprints and midgets.

E-Z II Micro: 10° layback and a 2" cutback on the left bottom of the seat for firewall clearance in micro sprints.