Cage 101…
From main hoop towards a pillars and down are called forward bars. The tie bar that goes between those, along the top edge of the windshield, is typically known as the halo. Misnomer term as a true halo is a bent piece that wraps following the roofline from the b pillars to the a pillars and across the windscreen upper edge. Basically a mini hoop. Weak strength design however, and not used in most cages(never in any of mine)