An article of footwear has a sole assembly that is further comprised of a chassis, a reinforcing member and a forefoot plate. The reinforcing member includes lateral and medial forefoot portions that fit with corresponding recesses in the forefoot plate and the reinforcing member in the forefoot region of the chassis. The reinforcing member includes a central portion that figs with a corresponding recess in the heel region of the chassis. The chassis and the forefoot plate include ridges on their outer surfaces. Cleats extending from ridges in the forefoot of the chassis are vertically aligned with protrusions on ridges in the forefoot plate. The protrusions can help diffuse forces applied by the cleats against the inner components of the sole and foot to reduce point loading.