What is the OEM tire size on the 2018 Honda Civic Si?

The OEM tire sizes on the 2018 Honda Civic Si are: 235/40R18, 235/40R18. Sizes vary by vehicle options from the factory.

2018 Honda Civic Si Tires

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Brands: Michelin

Model: Pilot Sport 4 S

Brands

Michelin

Model

CrossClimate2
Pilot Alpin Pa4
Pilot Sport 4
Pilot Sport 4 S
Pilot Sport 5
Pilot Sport A/S 4
X-Ice Snow

Tire Type

Summer

Tire Width

215mm

Aspect Ratio
Aspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Wheel Diameter

Tier

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Filters

Quick Filters

Quick Ship Packages

OFF

Items On Sale

OFF

Active Filters

Brands: Michelin

Model: Pilot Sport 4 S

Brands

Michelin

Model

CrossClimate2
Pilot Alpin Pa4
Pilot Sport 4
Pilot Sport 4 S
Pilot Sport 5
Pilot Sport A/S 4
X-Ice Snow

Tire Type

Summer

Tire Width

215mm

Aspect Ratio
Aspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Wheel Diameter

Tier

Best in Class

Tire Tag

Track

Load Index

Tire Speed

Load Range

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2018 Honda Civic Si Tires

The cheapest and fastest place to buy performance tires; guaranteed. Get the perfect set for your 2018 Honda Civic Si, whether you need summer, winter, or all season tires. All orders come with free expedited shipping. Have questions? Talk to us below! ⬇️

Filters

Quick Filters

Active Filters

Brands

Model

Tire Type

Tire Width

Aspect Ratio
Aspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Wheel Diameter

Tier

Tire Tag

Load Index

Tire Speed

Load Range

Filters

Quick Filters

Active Filters

Brands

Model

Tire Type

Tire Width

Aspect Ratio
Aspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Wheel Diameter

Tier

Tire Tag

Load Index

Tire Speed

Load Range

Product Results

Shop other categories for your 2018 Honda Civic Si

Frequently Asked Questions

What is the OEM tire size on the 2018 Honda Civic Si?

Get The Homie Hookup

Select Your Car

2018 Honda Civic Si Tires

The cheapest and fastest place to buy performance tires; guaranteed. Get the perfect set for your 2018 Honda Civic Si, whether you need summer, winter, or all season tires. All orders come with free expedited shipping. Have questions? Talk to us below! ⬇️

Filters

Quick Filters

Active Filters

Brands

Model

Tire Type

Tire Width

Aspect RatioAspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Wheel Diameter

Tier

Tire Tag

Load Index

Tire Speed

Load Range

Filters

Quick Filters

Active Filters

Brands

Model

Tire Type

Tire Width

Aspect RatioAspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Wheel Diameter

Tier

Tire Tag

Load Index

Tire Speed

Load Range

Product Results

Shop other categories for your 2018 Honda Civic Si

Frequently Asked Questions

What is the OEM tire size on the 2018 Honda Civic Si?

Aspect Ratio
Aspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.

Aspect Ratio
Aspect ratio is the sidewall height as a percentage of the tire's width. Example: 40 means the sidewall height is 40% of the width. Lower numbers = shorter, stiffer sidewalls; higher numbers = taller, cushier sidewalls.