EV Sportline is proud to supply these bed extenders to Rivian. In fact, this is the only bed extender Rivian trusts enough to offer directly in its Gear Shop.
Our patent-pending exclusive bolt-on design installs with no drilling, cutting, or screwing into your R1T - so there are no permanent modifications required.
Engineered exclusively for the Rivian R1T, this bed extender delivers a true factory-quality fit, unlike generic alternatives that fit poorly and require crude drilling or screws through the bedliner.
Designed with real-world R1T use in mind, the bed extender fits under Rivian tonneau covers, clears the spare tire, and preserves full cargo hook functionality.
R1E3800
$250.00
Team 1EV engineers have developed the first and only true 'bolt-in' bed extender specifically for Rivian R1T. The RMaxx bed extender is truly a bolt-on installation, with no permanent modifications to the Rivian required. No drilling and no screws to drive into the bedliner! Our extender assembly has been designed to bolt-on to the Rivian by re-using the factory tie-down hook bolts found on the rear corners of the R1T bed. The included Rivian mount brackets bolt-on easily. The extender pivots into place over the tailgate and when not in use it can be flipped back into the truck bed, or removed from the mounting brackets using the quick disconnect pins and stowed in your garage or basement. The extender includes two safety straps to connect to the tailgate hooks and ensure the extender doesn’t bounce around.
