The tire they used prior to making the switch to Goodyear was Westlake, a Chinese made brand, which I think is generally regarded as one of the best Chinese tires. If the spare is not a Goodyear, more than likely it’s a Westlake. OEM Westlakes on my 2021 2108DS have held exceptionally well for 3 years and 12,000 miles. They still show no signs of wear or weathering. Good for another year at least.
Jim. Former, 2021b Micro Minnie 2108DS
Medically grounded, but still lurking the Micro Minnie Discussions