Kia Stinger Spare Wheel & Tire Size:
17"x6"
Mine too, the tire is 135/80/18.
Anybody know the exact size of the spare wheel?
My 2019 AWD GT1 came with an 18-inch spare, but the wheel looks the same otherwise.
AFAIK, for the USA market, all Kia Stingers came with spare wheel that is 18x4, with 135/80R18 tire. Not all G70 came with a spare wheel. Our '21 Sport 6M/T didn't. Those that did have the same 18x4 and 135/80/18, which fits both Brembo and non-Brembo brakes. The same 18x4 is included in many different Hyundai/Kia/Genesis models, so it is easily found on ebay. I bought one from an '18 Genesis G80. It is identical to what came with our Stinger base 2.0T.
Not sure what spare wheel are packaged in those countries, where Stinger and G70 are also sold with 17" wheels. I kept the 17x4 spare donut (with 135/90/17 tire) from my '09 Genesis Sedan, and it fits our Stinger base 2.0 (with non-Brembo brakes) just fine. After we converted the Stinger to Brembo brakes, however, that 17x4 spare wheel no longer fit.
Note that the G90 came with an even larger 19x4 spare wheel. While the BCD is the same and can be mounted on Stinger & G70, the tire OD is larger and does not fit the trunk cover that goes over the spare wheel.
Also, if your G70 didn't come with a spare and you want to add it, you can purchase the following parts to mount an 18x4 spare:
Part Number Part Name Price
62856-J5000 Spare Bracket $21.24
62851-3B100 Spare Tire Retainer $4.60
The rest of the kit (jack, wrench, etc.) are readily available used on ebay.