Beadlock wheels are type of wheel that clamps the bead of the tire to the wheel in order to keep it from coming off when aired down in high-stress situations. The device that clamps down on the tire bead is a ring that is bolted to the wheel. This ring applies pressure to the bead of the tire against the wheel.
With beadlock wheels, you can air down your tires on the trail much lower than what is recommended with a standard wheel. Beadlock wheels for your Nissan Truck for SUV can be found at https://ruggedrocksoffroad.com/index.php?route=product/search&search=beadlock%20wheel