This kit fits models that came with the RAS RX spindle that was released in 2025. The arms are made from 304 stainless and will not rust. For install reference, the photos show the arm mounted on a throttle side spindle. Will fit both the 2 stroke and 4 stroke variations of the RX spindle.  If attaching tie rod via the rear most hole for the most assistance the plastic sway bar link will need to be notched to prevent tie rod rub just like the RAS X kits.