Flex, or axle articulation is an indication of the vehicle’s abilities off-road. And the 2018 Wrangler JL Rubicon has that in spades, even in factory form (with sway bar disconnected), as demonstrated in these video and photos.
How much better is the JL Rubicon’s axle articulation compared to the JK Rubicon’s? Metalcloak tested both on their Corner Travel Index (CTI) trailer and the stock JL Rubicon scored a 640 compared to the stock JK Rubicon’s 540 score!