We installed a platform and backbone system onto a 2022 Toyota Rav4. The platform and backbone were manufactured by Rhino Rack using part numbers 52109F and RTRB1. The backbone rail system was installed into fixed points along the vehicles existing flush rails and attached to those rails was the pioneer platform that we preassembled before installations. This platform has channels that run the length of the slats for mounting of future accessories. This installation was tedious and requires a second pair of hands.