Lexus IS wheel sizes

Year	Wheel size	Offset	Bolt pattern	Tire size
Lexus IS GSE20
2005	17x8.0	45	5x114.3	225/45R17
	18x8.0	45	5x114.3	225/40R18 front
	18x8.5	50	5x114.3	225/40R18 rear
Lexus IS GSE21
2005	17x8.0	45	5x114.3	225/45R17
	18x8.0	45	5x114.3	225/40R18 front
	18x8.5	50	5x114.3	225/40R18 rear
Lexus IS GSE25
2005	17x8.0	45	5x114.3	225/45R17
2005	17x8.0	45	5x114.3	225/45R17
Lexus IS USE20
2007	19x8.0		5x114.3	225/40R19 front
2007	19x9.0		5x114.3	225/35R19 rear

Wheel size Lexus IS:
PCD 5x114.3 diametr for 17 to 18, width for 8J to 8.5J, offset for 45 to 50. Similar to Infiniti QX50 37 AWD 2018

Tire size 17 to 19, width 225 to 225 and tire aspect 35 to 45.
Smallest tire size: 225/45R17, Largest: 225/40R19.