We were able to get our hands a Rivian R1S to test fit our Spacers. We are very happy with the results of the 1 inch Spacer setup. Below are a few pictures with the spacers installed. They look great installed!

Installation is very easy, with hand tools and torque wrench. As with all of our spacers they are hubcentric to ensure a smooth vibration free ride. Sold as a Set of 4

https://garageline.com/rivian/449-872-2021-2024-rivian-r1s-wheel-spacers.html#/35-spacers_size-25mm_front_25mm_rear