By 2011, the Mitsubishi Eclipse had settled into its role as a sporty front-drive coupe and convertible with bold styling and a strong enthusiast following, especially among owners who appreciate late-model import performance with a distinctive look. The 2011 Mitsubishi Eclipse uses a single primary tire size, 235/45R18, in radial construction on an 18-inch rim across the covered lineup. That makes the main decision less about finding the right size and more about choosing the right tire within that fitment, including differences in g-Force series options and blackwall presentation. For everyday road use, seasonal driving, or preserving the car's intended stance, wheel condition and exact vehicle setup still deserve a careful check.
Which Tire Size Is Right for The 2011 Mitsubishi Eclipse
The 2011 Mitsubishi Eclipse uses one primary tire size: 235/45R18, a metric radial designed for an 18-inch wheel. That same fitment carries across the GS, GS Sport, GT, Spyder GS, and Spyder GT, so the real choice is which radial tire best suits the car's intended use, handling feel, and product features within that established size.
Fit(s): GS, GS Sport, GT, Spyder GS, and Spyder GT
Construction: Radial|Rim: 18 in
The size 235/45R18 identifies a metric radial tire that is 235 millimeters wide, uses a 45-series aspect ratio, and fits an 18-inch rim. On the 2011 Mitsubishi Eclipse, this is the primary road-going fitment and keeps the focus on modern radial construction rather than older bias-ply sizing conventions. Available choices in this size center on BFGoodrich g-Force series tires with blackwall styling, along with differences in series design, load specification, and rim-width compatibility. It is the right starting point for maintaining the Eclipse's intended wheel diameter and overall fitment character.
Tire fitment is straightforward across the 2011 Mitsubishi Eclipse range because each covered sub-model uses the same 235/45R18 radial size. Checking the exact sub-model still helps confirm that the car remains on its intended wheel setup before comparing tire choices.
1
2011 Mitsubishi Eclipse GS
The 2011 Mitsubishi Eclipse GS uses the same 235/45R18 radial fitment as the rest of the covered lineup. That keeps tire selection focused on choosing among available radial products, while still confirming the wheel is the correct 18-inch setup if the car has been changed over time.
The 2011 Mitsubishi Eclipse GS Sport also uses 235/45R18 radial tires. For this sub-model, the main decision is comparing available tire series and specifications within the correct size rather than sorting through multiple factory fitments.
The 2011 Mitsubishi Eclipse GT shares the same 235/45R18 radial tire size used across the covered model range. That means tire selection comes down to product preference, road-use priorities, and confirming that the car still retains the proper 18-inch wheel fitment.
The 2011 Mitsubishi Eclipse Spyder GS uses 235/45R18 radials, matching the coupe fitment in this group. Tire choice is therefore more about selecting the right modern radial option than determining a different size, while keeping wheel condition and clearance in mind on an older convertible.
The 2011 Mitsubishi Eclipse Spyder GT uses the same 235/45R18 radial fitment as the other covered sub-models. That makes product selection fairly direct, though it is still worth checking for aftermarket wheels or suspension changes before settling on a specific tire.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2011 Mitsubishi Eclipse Tires for Sale
Available 235/45R18 options center on BFGoodrich radial tires in several g-Force series, all with blackwall styling. The main comparison points are series character, load specification, weight, and fit within the stated 18-inch rim-width range.
These FAQs focus on 2011 Mitsubishi Eclipse tire size, 18-inch rim fitment, available radial choices, product differences, and the basic inspections that matter before putting a sporty late-model Eclipse back on the road.
Tire Size & Fitment
What tire size fits a 2011 Mitsubishi Eclipse?
The 2011 Mitsubishi Eclipse uses 235/45R18 as its primary tire size. That fitment appears across the covered GS, GS Sport, GT, Spyder GS, and Spyder GT sub-models, and it is a radial tire size built for an 18-inch wheel.
That consistency makes tire selection simpler because the main task is not sorting through multiple factory sizes. The important next step is confirming that the car still has the proper 18-inch wheels and has not been altered with aftermarket wheels, suspension changes, or other modifications that could affect clearance or rim-width compatibility.
What size rim does a 2011 Mitsubishi Eclipse use?
The primary tire fitment for the 2011 Mitsubishi Eclipse is built around an 18-inch rim. In this application, the 235/45R18 size corresponds to that 18-inch wheel diameter, which is the wheel size that should be confirmed before comparing replacement tires.
Wheel diameter is only part of the picture, so it also helps to verify actual wheel width before choosing a tire. The available 235/45R18 products in this fitment call for rim widths in the 7.5- to 9-inch range, which matters if the car is wearing aftermarket wheels instead of its intended wheel setup.
Do all 2011 Mitsubishi Eclipse sub-models use the same tire size?
Yes. The covered 2011 Mitsubishi Eclipse sub-models all use the same primary tire size, 235/45R18, in radial construction. That includes the GS, GS Sport, GT, Spyder GS, and Spyder GT, so there is no split in primary size among those versions.
Even with shared fitment, it is still smart to check the car itself rather than assume every example remains unchanged. A different wheel package, replacement rims, or suspension modifications can alter what works cleanly, so confirming wheel diameter, wheel width, and visible clearance is worthwhile before choosing a specific tire.
Choosing the Right Tire
What should I consider when choosing a 235/45R18 tire for a 2011 Mitsubishi Eclipse?
Start with the confirmed size, 235/45R18, and make sure the tire is appropriate for an 18-inch wheel. From there, compare radial construction details such as tire series, load specification, weight, and the wheel-width range the tire is designed to work with.
A 2011 Mitsubishi Eclipse used for casual street driving may call for a different emphasis than one driven more aggressively or only in fair weather. Matching the tire to the car's actual wheel setup and intended use will usually matter more than chasing small spec differences between otherwise correct products in the same size.
What sidewall styles are available for 2011 Mitsubishi Eclipse tires?
The available 235/45R18 tires for the 2011 Mitsubishi Eclipse use a blackwall sidewall style. That gives the car a clean, modern performance look that suits the Eclipse's late-model sporty character without introducing a vintage-style whitewall or specialty sidewall treatment.
Since sidewall appearance does not vary here, the buying decision shifts toward other differences such as tire series, load rating details, and rim-width compatibility. Owners who want to preserve the Eclipse's original visual balance should also make sure the wheel diameter and offset remain appropriate for the car's current stance and clearance.
What tire series are available for the 2011 Mitsubishi Eclipse?
The 2011 Mitsubishi Eclipse has 235/45R18 options in several BFGoodrich g-Force series, including g-Force Comp 2 AS, g-Force Sport Comp 2, and g-Force Phenom T/A. Each stays within the correct modern radial fitment while offering a slightly different product identity within the same size category.
Comparing series is useful when the size itself is already settled and the car uses one common fitment across sub-models. It helps to review each tire's supporting details, including load specification, weight, and wheel-width range, so the final choice matches both the vehicle setup and how the Eclipse is actually driven.
Restoration & Appearance
Which tire should I choose for a period-style 2011 Mitsubishi Eclipse?
A period-style approach for a 2011 Mitsubishi Eclipse starts with retaining the correct 235/45R18 radial size on an 18-inch wheel. Because the available options are modern blackwall radials, the most authentic-looking choice will usually come from keeping the proper size and overall tire profile rather than changing to a different visual theme.
Late-model collector cars often look most convincing when the wheel-and-tire package stays close to its intended proportions. Owners pursuing a more exact restoration-level appearance should compare the car against original delivery literature, photos, or marque-specific references before making changes to wheel design, tire branding, or stance.
Does correct tire fitment matter for a 2011 Mitsubishi Eclipse restoration?
Yes, correct tire fitment matters on a 2011 Mitsubishi Eclipse restoration because the tire size strongly affects the car's stance, wheel-well fill, and overall visual balance. Keeping the 235/45R18 radial fitment helps preserve the proportions associated with the car's intended 18-inch wheel setup.
Fitment also matters beyond appearance. A restoration-minded owner should verify wheel diameter, wheel width, and any changes made by previous owners, since aftermarket wheels or altered suspension can shift how the tire sits and behaves. Getting those fundamentals right keeps the finished car looking coherent and driving as expected.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Mitsubishi Eclipse?
Yes. Modifications can affect tire fitment on a 2011 Mitsubishi Eclipse even when the intended tire size is still 235/45R18. Aftermarket wheels, altered offset, suspension lowering, replacement springs, or body changes can all influence clearance at the fender, suspension, and steering components.
That is why the car itself should be checked before selecting a tire simply by size. Looking at actual wheel width, wheel diameter, ride height, and visible clearance around the tire's path will help prevent avoidable fitment surprises, especially on cars that have passed through several owners or styling phases.
What should I inspect before driving a 2011 Mitsubishi Eclipse on new tires?
Before driving a 2011 Mitsubishi Eclipse on new tires, inspect the wheels for damage, confirm the 18-inch wheel setup, and make sure the tires are seated, inflated, and free of visible defects. It is also wise to look over suspension and steering components so the new tires are not immediately affected by worn hardware.
A short road test should include attention to vibration, pull, rubbing, and unusual noise. Older sporty cars may hide issues from long periods of light use, so checking alignment condition, brake operation, and general wheel-torque security adds confidence before normal driving or a longer trip.
How often should tires on a 2011 Mitsubishi Eclipse be inspected?
Tires on a 2011 Mitsubishi Eclipse should be inspected regularly, not just when tread looks low. A quick visual check before routine driving and a more careful inspection during service intervals helps catch uneven wear, air loss, cracking, bulges, cuts, or damage that can develop even on lightly used cars.
A sporty coupe or convertible that spends time parked can age tires without adding many miles, so condition matters as much as tread depth. Pressure should be monitored consistently, and any sign of rubbing or irregular wear should prompt a closer look at alignment, suspension condition, and wheel setup.
