Hyundai has presented a new wheel and tire design that incorporates built-in snow chains that deploy and retract at the push of a button, potentially putting an end to the fiddly, freezing process of wrapping and removing traditional snow chains.
Hyundai unveils car tires with built-in, push-button snow chains::undefined
If you’re talking about the portal hub posted recently, that’s tech going back to WWI, and still requires either CV or universal joints (depending on the speed of the shaft). Putting gears in the hub just adds weight. They work fine for off-road vehicles that move slowly, it provides additional clearance. It also offers the opportunity to reduce rotational speeds of the drive shafts (typically by ~66%), enabling the use of u-joints instead of CV joints (which are always required because of suspension travel).
If you’re talking about the portal hub posted recently, that’s tech going back to WWI, and still requires either CV or universal joints (depending on the speed of the shaft). Putting gears in the hub just adds weight. They work fine for off-road vehicles that move slowly, it provides additional clearance. It also offers the opportunity to reduce rotational speeds of the drive shafts (typically by ~66%), enabling the use of u-joints instead of CV joints (which are always required because of suspension travel).
Hyundai costs less than others for a reason.