This RIGID roof rack mount kit is designed specifically for the 2021 Bronco, with a factory roof rack, and allows for a clean install of RIGID's high output LED lighting. This roof rack mounting kit fits RIGID's 40 Inch SR-Series PRO straight LED Light Bar. Own The Night with RIGID's roof rack mount LED light bar kit for your 2021 Ford Bronco. All of RIGID's grilles, OE Brackets, and Mounts are made with stainless steel and covered with UV and abrasion resistant powder coat to ensure years of use in the harshest conditions. Professional installation recommended.