The tyre options available for the Nissan Ariya at Tyres.co.uk include the Bridgestone Alenza 001 and the Sumitomo SP Sport Maxx 050 in 235/55 R19, which are both 19-inch factory-registered fitments. These are compatible with the Nissan Ariya models that have 19-inch wheels; it is important to check the door-placard load index and speed rating specifications prior to ordering.
You can see the Nissan Ariya tyre size on the driver's side centre pillar tyre placard that is shown when the driver's door is open. The label also specifies the recommended cold tyre pressures which should be cross checked with the sidewall of the tyre and the vehicle registration as there is a difference in wheel fitments.
Nissan Ariya 2WD models do not automatically need four replacements, so when only two are needed, fit a matching new pair to the rear axle in accordance with UK tyre safety guidance. In accordance with Nissan's recommendations, all e-4ORCE four-wheel-drive models must have the same tyre size, brand, construction, and tread pattern on each of the four wheels, and they must replace all of them if there is excessive wear.