Lexus SC Tire Sizes & Rim Dimensions by Model Year and Trim

The Lexus SC series features a variety of tire sizes and rim dimensions depending on the model year and trim level. Generally, tire markings indicate width, aspect ratio, and diameter, which correspond to specific rim widths and diameters suited for each SC variant.\n\nFor early Lexus SC models, common tire sizes range from 225/55R16 to 235/45R17, with rim widths typically between 6.5 to 8 inches. Later models or sport trims may use wider rims and lower profile tires to enhance performance and handling.\n\nWhen comparing trims, it is important to match tire sizes to the recommended rim dimensions to maintain vehicle safety and performance. Always refer to the owner's manual or trusted tire guides to confirm compatibility before purchasing new tires or wheels.\n\nSelecting the correct rim width and diameter ensures optimal tire seating, handling characteristics, and preserves vehicle balance. Practical comparison across Lexus SC trims helps identify the right balance of comfort and performance tailored to your driving needs.

Year
Make / model / trim Year Tire size Wheel
Lexus SC 4302026245/40R188" × 18"
Lexus SC 4302025245/40R188" × 18"
Lexus SC 4302024245/40R188" × 18"
Lexus SC 4302023245/40R188" × 18"
Lexus SC 4302022245/40R188" × 18"
Lexus SC 4302021245/40R188" × 18"
Lexus SC 4302020245/40R188" × 18"
Lexus SC 4302010245/40R188" × 18"
Lexus SC 4302009245/40R188" × 18"
Lexus SC 4302008245/40R188" × 18"
Lexus SC 4302007245/40R188" × 18"
Lexus SC 4302006245/40R188" × 18"
Lexus SC 4302005245/40R188" × 18"
Lexus SC 4302004245/40R188" × 18"
Lexus SC 4302003245/40R188" × 18"
Lexus SC 4302002245/40R188" × 18"
Lexus SC 4302001245/40R188" × 18"

For bolt pattern (PCD), offset ET, center bore, and mounting details, open the bolt pattern page for Lexus SC.

FAQ

What tire size markings are common on Lexus SC models?
Lexus SC models commonly use tire sizes like 225/55R16 and 235/45R17 depending on the year and trim.
How do rim width and diameter affect tire fitment on the Lexus SC?
Rim width and diameter must match tire specifications to ensure proper fitment, safety, and vehicle performance.
Can I mix tire sizes between different Lexus SC trims?
It is recommended to use tire sizes that fit the specific trim’s rim dimensions to maintain handling and safety standards.
Tire size calculatorShow

Compare two tire sizes — diameter, speedometer error, and clearance change.

inchmm
Size 1Size 2DiffDiff(%)
Diameter25.0"25.4"0.5"1.89%
Width7.7"8.5"0.8"10.26%
Circumference78.4"79.9"1.5"1.86%
Profile height5.0"4.2"-0.7"-15.08%
Turnover per mile80779314-1.73%
Clearance--+0.2"-
25.0"
7.7"
old tire side
25.5"
8.5"
new tire side
old tire
15"
old rim
5.0"
new tire
17"
new rim
4.2"

Speedometer Error

(First wheel OEM size)

Reading20 mph30 mph40 mph50 mph60 mph70 mph80 mph90 mph
Actual20.430.540.750.961.171.281.491.6