Porsche 718 tire size

The most common factory tire size for the Porsche 718 is 235/35R20 front, 265/35R20 rear, on 97 of the 149 year and trim fits listed. The table lists every year from 2017 to 2025 and the size each trim was built with. Pick your year and trim to see the tires that fit.

Porsche 718 tire sizes by year

Factory tire sizes of the Porsche 718 by year and trim
Year	Factory tire size	Trims
2025	235/35R20 front, 265/35R20 rear	Boxster, Boxster GTS 4.0 w/ Ceramic Brakes, Boxster S, Boxster Style Edition, Cayman, Cayman GTS 4.0 w/ Ceramic Brakes, Cayman S, Cayman Style Edition
	235/40R19 front, 265/40R19 rear	Boxster, Boxster S, Boxster Style Edition, Cayman, Cayman S, Cayman Style Edition
	235/45R18 front, 265/45R18 rear	Boxster, Boxster Style Edition, Cayman, Cayman Style Edition
	245/35R20 front, 295/30R20 rear	Cayman GT4 RS, Cayman GT4 RS w/ Race Nut, Spyder RS, Spyder RS w/ Ceramic Brakes
2024	235/35R20 front, 265/35R20 rear	Boxster, Boxster GTS 4.0 w/ Ceramic Brakes, Boxster S, Boxster Style Edition, Boxster T, Cayman, Cayman GTS 4.0 w/ Ceramic Brakes, Cayman S, Cayman Style Edition, Cayman T
	235/40R19 front, 265/40R19 rear	Boxster, Boxster S, Boxster Style Edition, Cayman, Cayman S, Cayman Style Edition
	245/35R20 front, 295/30R20 rear	Cayman GT4, Cayman GT4 RS, Cayman GT4 RS w/ Race Nut, Cayman GT4 w/ Ceramic Brakes, Spyder, Spyder w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster, Boxster Style Edition, Cayman, Cayman Style Edition
2023	235/35R20 front, 265/35R20 rear	Boxster, Boxster GTS 4.0 w/ Ceramic Brakes, Boxster S, Boxster T, Cayman, Cayman GTS 4.0 w/ Ceramic Brakes, Cayman S, Cayman T
	245/35R20 front, 295/30R20 rear	Cayman GT4, Cayman GT4 RS, Cayman GT4 RS w/ Race Nut, Cayman GT4 w/ Ceramic Brakes, Spyder, Spyder w/ Ceramic Brakes
	235/40R19 front, 265/40R19 rear	Boxster, Boxster S, Cayman, Cayman S
	235/45R18 front, 265/45R18 rear	Boxster, Cayman
2022	235/35R20 front, 265/35R20 rear	25th Anniversary w/ Ceramic Brakes, Boxster, Boxster GTS 4.0 w/ Ceramic Brakes, Boxster S, Boxster T, Cayman, Cayman GTS 4.0 w/ Ceramic Brakes, Cayman S, Cayman T
	235/40R19 front, 265/40R19 rear	Boxster, Boxster S, Cayman, Cayman S
	245/35R20 front, 295/30R20 rear	Cayman GT4, Cayman GT4 w/ Ceramic Brakes, Spyder, Spyder w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster, Cayman
2021	245/35R20 front, 305/30R20 rear	Boxster 25 Years, Boxster 25 Years w/ Ceramic Brakes, Boxster GTS 4.0, Boxster GTS 4.0 w/ Ceramic Brakes, Boxster S w/ 911 Turbo Wheels, Boxster S w/ Carrera Classic Whee, Boxster S w/ Carrera Sport Wheels, Boxster S w/ Ceramic Brakes w/ 911 Turbo Wheels, Boxster S w/ Ceramic Brakes w/ Carrera Classic Whee, Boxster S w/ Ceramic Brakes w/ Carrera Sport Wheels, Boxster T, Boxster T w/ Ceramic Brakes and 22 more
	235/35R20 front, 265/35R20 rear	Boxster, Boxster 25 Years, Boxster 25 Years w/ Ceramic Brakes, Boxster GTS 4.0, Boxster GTS 4.0 w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Boxster T, Boxster T w/ Ceramic Brakes, Boxster w/ Ceramic Brakes, Cayman, Cayman GTS 4.0 and 6 more
	235/40R19 front, 265/40R19 rear	Boxster, Boxster S, Boxster S w/ Ceramic Brakes, Boxster w/ Ceramic Brakes, Cayman, Cayman S, Cayman S w/ Ceramic Brakes, Cayman w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster, Boxster w/ Ceramic Brakes, Cayman, Cayman w/ Ceramic Brakes
	245/35R20 front, 295/30R20 rear	Cayman GT4, Cayman GT4 w/ Ceramic Brakes, Spyder, Spyder w/ Ceramic Brakes
2020	235/35R20 front, 265/35R20 rear	Boxster, Boxster S, Boxster S w/ Ceramic Brakes, Boxster T, Boxster T w/ Ceramic Brakes, Boxster w/ Ceramic Brakes, Cayman, Cayman S, Cayman S w/ Ceramic Brakes, Cayman T, Cayman T w/ Ceramic Brakes, Cayman w/ Ceramic Brakes
	235/40R19 front, 265/40R19 rear	Boxster, Boxster S, Boxster S w/ Ceramic Brakes, Boxster w/ Ceramic Brakes, Cayman, Cayman S, Cayman S w/ Ceramic Brakes, Cayman w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster, Boxster w/ Ceramic Brakes, Cayman, Cayman w/ Ceramic Brakes
	245/35R20 front, 295/30R20 rear	Cayman GT4, Cayman GT4 w/ Ceramic Brakes, Spyder, Spyder w/ Ceramic Brakes
2019	235/35R20 front, 265/35R20 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Boxster GTS, Boxster GTS w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes, Cayman GTS, Cayman GTS w/ Ceramic Brakes, Cayman S, Cayman S w/ Ceramic Brakes
	235/40R19 front, 265/40R19 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes, Cayman S, Cayman S w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes
2018	235/35R20 front, 265/35R20 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Boxster GTS, Boxster GTS w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes, Cayman GTS, Cayman GTS w/ Ceramic Brakes, Cayman S, Cayman S w/ Ceramic Brakes
	235/40R19 front, 265/40R19 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes, Cayman S, Cayman S w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes
2017	235/35R20 front, 265/35R20 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes, Cayman S, Cayman S w/ Ceramic Brakes
	235/40R19 front, 265/40R19 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Boxster S, Boxster S w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes, Cayman S, Cayman S w/ Ceramic Brakes
	235/45R18 front, 265/45R18 rear	Boxster Base, Boxster Base w/ Ceramic Brakes, Cayman Base, Cayman Base w/ Ceramic Brakes

Check your own tire

A trim can be sold with more than one wheel size. The size printed on the sidewall of your current tire, or on the placard in the driver's door jamb, is the one your vehicle has.

How to read your tire size Other Porsche models