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235/35R20

Standard Metric

Factory Specs, Physical Dimensions & Compatible Vehicle Applications

Factory Spec Overview

The 235/35R20 tire size features an overall diameter of 26.48 inches, a section width of 9.3 inches (235mm), and rotates 762 times per mile. It is a standard factory tire fitment on 67+ vehicle models including Porsche Boxster, Porsche Cayman.

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Physical Dimensions & Specs

Overall Diameter

26.48"

672.6 mm

Section Width

235 mm

9.25" wide

Sidewall Height

3.24"

82.3 mm (35% aspect)

Revolutions / Mile

762

Circumference: 83.18"

Rim Diameter

20"

Wheel size

Recommended Rim Width

5.9" - 8.2"

Optimal rim width range

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Speedometer & Alternate Size Calculator

Testing an alternate size for your vehicle? Compare 235/35R20 against any proposed tire size below:

Popular Comparisons:
Tire 1 (Stock / Base)235/35R20
Overall Height:26.5"
Sidewall:3.2"
Revs/Mile:762
Tire 2 (New / Compare)245/60R18
Overall Height:29.6"
Sidewall:5.8"
Revs/Mile:682

Visual Tire & Wheel Comparison

Tire 126.5" HeightTire 229.6" Height

Speedometer Variance

+11.7%At 60 mph reading, actual speed is 67.0 mph
IndicatedActual SpeedDiff
20 mph22.3 mph+2.3 mph
30 mph33.5 mph+3.5 mph
45 mph50.3 mph+5.3 mph
60 mph67.0 mph+7.0 mph
75 mph83.8 mph+8.8 mph
90 mph100.5 mph+10.5 mph

Fender & Suspension Clearance

Fitment Status: MODERATE RISK

Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.

Inner Strut Space:7.7mm LESS clearance
Outer Fender Push:Extends 17.7mm further out
Ride Height Delta:+1.55" ground clearance

Vehicles That Fit 235/35R20 (67+ Models)

Factory standard and optional vehicle fitments utilizing 235/35R20 tires:

YearMake & ModelTrim / VariantLookup Specs
2015Porsche BoxsterGTS, Automatic DCT TransView 2015 Boxster ›
2015Porsche BoxsterGTS, Standard TransView 2015 Boxster ›
2015Porsche CaymanGTS, Standard TransView 2015 Cayman ›
2015Porsche CaymanGTS, Automatic DCT TransView 2015 Cayman ›
2016Porsche BoxsterGTS, Automatic DCT TransView 2016 Boxster ›
2016Porsche BoxsterSpyderView 2016 Boxster ›
2016Porsche CaymanGTS, Automatic DCT TransView 2016 Cayman ›
2016Porsche CaymanGTS, Standard TransView 2016 Cayman ›
2016Porsche BoxsterGTS, Standard TransView 2016 Boxster ›
2018Porsche 718 BoxsterGTS, Automatic DCT TransView 2018 718 Boxster ›
2018Porsche 718 BoxsterGTS, Standard TransView 2018 718 Boxster ›
2018Porsche 718 CaymanGTS, Automatic DCT TransView 2018 718 Cayman ›
2018Porsche 718 CaymanGTS, Standard TransView 2018 718 Cayman ›
2019Porsche 718 BoxsterGTS, Automatic DCT TransView 2019 718 Boxster ›
2019Porsche 718 BoxsterGTS, Standard TransView 2019 718 Boxster ›
2019Porsche 718 CaymanGTS, Automatic DCT TransView 2019 718 Cayman ›
2019Porsche 718 CaymanGTS, Standard TransView 2019 718 Cayman ›
2020Porsche 718 BoxsterT, Automatic DCT TransView 2020 718 Boxster ›
2020Porsche 718 BoxsterT, Standard TransView 2020 718 Boxster ›
2020Porsche 718 CaymanT, Standard TransView 2020 718 Cayman ›
2020Porsche 718 CaymanT, Automatic DCT TransView 2020 718 Cayman ›
2021Porsche 718 Boxster25 Years, Eng CD MDW.ACView 2021 718 Boxster ›
2021Porsche 718 Boxster25 Years, Eng CD MDW.ADView 2021 718 Boxster ›
2021Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ACView 2021 718 Boxster ›
2021Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ADView 2021 718 Boxster ›
2021Porsche 718 BoxsterT, Standard TransView 2021 718 Boxster ›
2021Porsche 718 BoxsterT, Automatic DCT TransView 2021 718 Boxster ›
2021Porsche 718 CaymanT, Automatic DCT TransView 2021 718 Cayman ›
2021Porsche 718 CaymanGTS 4.0, Eng CD MDW.ACView 2021 718 Cayman ›
2021Porsche 718 CaymanT, Standard TransView 2021 718 Cayman ›
2021Porsche 718 CaymanGTS 4.0, Eng CD MDW.ADView 2021 718 Cayman ›
2022Porsche 718 Boxster25 Years, Eng CD MDW.ACView 2022 718 Boxster ›
2022Porsche 718 Boxster25 Years, Eng CD MDW.ADView 2022 718 Boxster ›
2022Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ACView 2022 718 Boxster ›
2022Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ADView 2022 718 Boxster ›
2022Porsche 718 CaymanGTS 4.0, Eng CD MDW.ADView 2022 718 Cayman ›
2022Porsche 718 CaymanGTS 4.0, Eng CD MDW.ACView 2022 718 Cayman ›
2022Porsche 718 CaymanT, Automatic DCT TransView 2022 718 Cayman ›
2022Porsche 718 CaymanT, Standard TransView 2022 718 Cayman ›
2022Porsche 718 BoxsterT, Automatic DCT TransView 2022 718 Boxster ›
2022Porsche 718 BoxsterT, Standard TransView 2022 718 Boxster ›
2023Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ACView 2023 718 Boxster ›
2023Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ADView 2023 718 Boxster ›
2023Porsche 718 BoxsterT, Standard TransView 2023 718 Boxster ›
2023Porsche 718 BoxsterT, Automatic DCT TransView 2023 718 Boxster ›
2023Porsche 718 CaymanGTS 4.0, Eng CD MDW.ACView 2023 718 Cayman ›
2023Porsche 718 CaymanT, Automatic DCT TransView 2023 718 Cayman ›
2023Porsche 718 CaymanT, Standard TransView 2023 718 Cayman ›
2023Porsche 718 CaymanGTS 4.0, Eng CD MDW.ADView 2023 718 Cayman ›
2024Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ACView 2024 718 Boxster ›
2024Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ADView 2024 718 Boxster ›
2024Porsche 718 BoxsterStyle Edition, Automatic DCT TransView 2024 718 Boxster ›
2024Porsche 718 CaymanGTS 4.0, Eng CD MDW.ADView 2024 718 Cayman ›
2024Porsche 718 BoxsterStyle Edition, Standard TransView 2024 718 Boxster ›
2024Porsche 718 CaymanGTS 4.0, Eng CD MDW.ACView 2024 718 Cayman ›
2024Porsche 718 CaymanStyle Edition, Automatic DCT TransView 2024 718 Cayman ›
2024Porsche 718 CaymanStyle Edition, Standard TransView 2024 718 Cayman ›
2025Porsche 718 BoxsterBase, Standard TransView 2025 718 Boxster ›
2025Porsche 718 BoxsterGTS 4.0, Eng CD MDW.ADView 2025 718 Boxster ›
2025Porsche 718 CaymanGT4 RSView 2025 718 Cayman ›
2025Porsche 718 CaymanBase, Standard TransView 2025 718 Cayman ›
2021Tesla Model 3PerformanceView 2021 Model 3 ›
2022Tesla Model 3PerformanceView 2022 Model 3 ›
2023Tesla Model 3PerformanceView 2023 Model 3 ›
2024Tesla Model 3PerformanceView 2024 Model 3 ›
2025Tesla Model 3Long Range, RWDView 2025 Model 3 ›
2017Volkswagen BeetleR-Line SELView 2017 Beetle ›