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A sport-compact fitment page for Civic Si shoppers comparing sharper road feel, wet confidence, and premium replacement options.
Compare prices from partner retailers.
235/40R18
This is the main fitment size we currently track for 2020 Honda Civic Si.Best for daily commuting, highway use, wet-road confidence, and strong value in one tire category.
Use this as a starting categoryBest when road noise, ride comfort, and smooth highway manners matter as much as raw price.
Use this as a starting categoryBest for drivers covering high yearly mileage and trying to stretch replacement intervals.
Use this as a starting categoryMichelin is one of the most searched tire brands for commuters, families, and premium vehicle owners comparing quiet ride quality, wet traction, and mileage.
All-season comfort and Long tread lifeGoodyear is a high-volume tire brand across commuter, crossover, SUV, and truck segments, making it a strong comparison target for value and broad availability.
Everyday all-season driving and SUV fitmentsBridgestone is one of the most researched mainstream tire brands for drivers comparing wet traction, comfort, and broad fitment support.
Balanced all-season performance and Wet tractionUseful if staying under budget is the main goal and you still want a confident daily-driver recommendation.
See live offersA dependable starting point if you want one tire recommendation to cover the most common daily driving needs.
See live offersWorth paying a little more if road noise and smooth highway comfort matter most.
See live offersStay size-first when the fitment is already confirmed, or use year, make, and model selectors when you want a final vehicle check before choosing a retailer.
Quick answers to the questions shoppers usually need resolved before they move into a fitment page, comparison page, or retailer checkout.
The main tire size we currently track for the 2020 Honda Civic Si is 235/40R18. Trim-specific factory sizes can vary, so confirm the tire placard on your vehicle before ordering.
Most shoppers start with all-season touring tires because they balance wet traction, comfort, and tread life for everyday commuting.
If you already know 235/40R18 is the right fit, size-first results are the fastest path. If you still want one more fitment check, use the vehicle finder before you choose a retailer.
We keep vehicle pages focused on fitment, useful tire categories, live retailer pricing, and exact-size pages that help shoppers move into checkout with confidence.