Dimensions Of Rivian R1t. Detailed specs and features for the used 2022 rivian r1t including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine type, cylinders,. With the tailgate up, the r1t bed is 54” long, with a 45.5” overhang past the rear tires.

Choose a generation of rivian r1t from the list below to view their respective versions. Rivian released an updated list of dimensions for the r1t on their website.