On the 2015 Kia Optima, tire sizes vary by trim: LX and Hybrid models use 205/65R16, EX uses 215/55R17, and SX uses 235/45R18.
The tire size for a 2015 Optima depends on the trim level and wheel package. The LX and Hybrid trims typically ride on 16-inch wheels, EX models use 17-inch wheels, and SX models wear 18-inch rims. Always check the door placard and owner's manual for your exact size, as factory options and regional specs can differ.
Tire sizes by trim
Below are the common factory sizes for the 2015 Optima, organized by trim and wheel configuration. Individual vehicles may vary based on options or regional specifications.
LX and Hybrid (16-inch wheels)
Common factory tire size for LX and Hybrid models with 16-inch wheels:
- 205/65R16
Note: If a different wheel option is installed, sizes may differ.
EX (17-inch wheels)
Factory tire size for EX models with 17-inch wheels:
- 215/55R17
Note: Some packages or regional specs could alter the size; always verify.
SX (18-inch wheels)
Factory tire size for SX models with 18-inch wheels:
- 235/45R18
Note: For the high-performance variant, this is the common size; confirm on the door placard.
How to verify the exact tire size for your car
Check the driver’s door jamb placard (the tire and loading label) for the recommended size and specifications. The owner's manual also lists the official sizes for each trim and wheel package. If you’re replacing tires, match the OEM size and load/speed ratings to maintain performance and safety.
Summary
In brief, the 2015 Kia Optima uses different tire sizes by trim: LX and Hybrid typically 205/65R16, EX typically 215/55R17, and SX typically 235/45R18. Always confirm the exact size on the door placard or in the owner's manual, as regional options and aftermarket wheels can change specifications.