What size tires are on a Lexus IS250?
Most Lexus IS250 models use 225/45R17 tires on 17-inch wheels, and 235/40R18 tires on 18-inch wheels. The exact tire size can vary by year, trim, and market, so always verify the specification on the door jamb placard or in the owner's manual.
Overview of IS250 tire sizing by wheel size
The IS250, produced from 2006 to 2013, offered different wheel and tire options across its run. The following sections cover the two most common configurations you’re likely to encounter.
17-inch wheels
Many IS250 models shipped with 17-inch wheels and a mid-range tire profile. The common tire size for these setups is:
- 225/45R17
When in doubt, check the door jamb placard or the owner's manual for the exact load index and speed rating required for your vehicle.
18-inch wheels
Some IS250 trims and years offered 18-inch wheels, typically paired with a sport-oriented tire. The usual size for these wheels is:
- 235/40R18
As with the 17-inch configuration, verify the precise specification for your car based on year, trim, and market.
Summary
In short, the IS250’s tire sizes commonly fall into two primary options depending on wheel diameter: 225/45R17 for 17-inch wheels and 235/40R18 for 18-inch wheels. Exact specifications can vary by model year, trim level, and regional market, so consult the door placard or the owner's manual to confirm the correct size for your vehicle.
