The 2009 Smart Fortwo was built around compact dimensions, city-friendly maneuverability, and a distinctly modern packaging philosophy that set it apart from conventional small cars. Its short wheelbase and rear-engine layout make tire fitment more configuration-sensitive than many buyers expect, especially because front and rear sizes are not always the same. This model uses radial tires in three distinct sizes: 155/60R15, 175/55R15, and 215/35R17. That means the real decision is not just choosing a tire, but confirming position and sub-model first. For a Fortwo that is driven regularly, kept stock, or fitted with later wheels, accurate size and rim-diameter verification matters before anything else.
Which Tire Size Is Right for The 2009 Smart Fortwo
The 2009 Smart Fortwo uses three primary tire sizes, and they vary by sub-model and by front or rear position. Two sizes fit 15-inch rims, while one fits a 17-inch rim, so the first step is identifying the exact Fortwo configuration and confirming whether you are selecting a front or rear tire before comparing tread designs or replacement options.
Fit(s): BRABUS Front, Passion Cabrio Rear, Passion Rear, and Pure Rear
Construction: Radial|Rim: 15 in
The 175/55R15 size is a metric radial format: 175 is the nominal section width in millimeters, 55 is the aspect ratio, R indicates radial construction, and 15 is the rim diameter in inches. On the 2009 Smart Fortwo, this size serves as a primary fitment on several rear applications and also appears on the BRABUS front setup. Its practical role is tied to position-specific fitment, so it should be chosen only after confirming whether the car uses it at the front or rear and whether the wheel remains the original 15-inch size.
The 215/35R17 size uses modern metric radial sizing, with a 215-millimeter nominal section width, a 35-series profile, radial construction, and a 17-inch rim diameter. For the 2009 Smart Fortwo, this size is associated with the BRABUS rear application and stands apart from the 15-inch fitments used elsewhere in the range. That makes wheel confirmation especially important, because a 17-inch rear setup changes the fitment conversation immediately and should be verified before comparing replacement tires for appearance, handling intent, or everyday road use.
Fit(s): Passion Cabrio Front, Passion Front, and Pure Front
Construction: Radial|Rim: 15 in
The 155/60R15 size is another modern metric radial, meaning a 155-millimeter nominal section width, a 60-series aspect ratio, radial construction, and a 15-inch rim. On the 2009 Smart Fortwo, this size is used on several front applications rather than across every corner of the car. Its narrower section makes it a position-specific fitment choice, so it is best evaluated after confirming the sub-model and axle location, especially on a car that may have had wheel changes or tire replacement without keeping the original staggered arrangement.
Sub-model fitment on the 2009 Smart Fortwo is tied closely to front and rear position, and not every version uses the same combination. Checking the exact sub-model matters because the BRABUS setup differs from the Pure and Passion configurations, including a separate rear rim diameter.
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2009 Smart Fortwo BRABUS Front
The 2009 Smart Fortwo BRABUS Front uses the 175/55R15 radial size rather than the narrower 15-inch front fitment found on other Fortwo versions. That makes wheel position especially important when replacing tires, since this front setup is distinct within the model range and should be matched carefully.
The 2009 Smart Fortwo BRABUS Rear uses a 215/35R17 radial tire, making it the only covered configuration here with a 17-inch rim. Tire selection starts with confirming that larger rear wheel setup, particularly on cars that may have seen wheel swaps or mixed replacement history.
The 2009 Smart Fortwo Passion Cabrio Front uses the 155/60R15 radial size on a 15-inch wheel. For replacement, the key is maintaining the correct front-specific size rather than assuming the rear tire size belongs at all four corners.
The 2009 Smart Fortwo Passion Cabrio Rear uses the 175/55R15 radial size. That means rear tire selection should stay focused on the proper axle-specific fitment and on confirming that the car still retains its original staggered 15-inch wheel arrangement.
The 2009 Smart Fortwo Passion Front uses the 155/60R15 radial size. Choosing a replacement means keeping the front application separate from the rear, since this Fortwo does not use the same tire size at both ends.
The 2009 Smart Fortwo Passion Rear uses the 175/55R15 radial size on a 15-inch wheel. Rear tire selection should account for the Fortwo's staggered setup so the replacement matches the correct position and overall wheel configuration.
The 2009 Smart Fortwo Pure Front uses the 155/60R15 radial size. That makes front tire replacement fairly straightforward once the wheel size is confirmed, but the narrower front fitment should not be confused with the larger rear tire used on the same car.
The 2009 Smart Fortwo Pure Rear uses the 175/55R15 radial size. Buyers replacing rear tires should confirm position first, since the Pure uses a different front size and relies on a staggered fitment rather than a single all-around tire size.
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.
Frequently Asked Questions
Common 2009 Smart Fortwo tire questions usually come down to staggered sizing, front-versus-rear fitment, 15-inch versus 17-inch wheels, and how to choose the right radial tire for a stock or modified car.
Tire Size & Fitment
What tire size fits a 2009 Smart Fortwo?
A 2009 Smart Fortwo can use 155/60R15, 175/55R15, or 215/35R17, depending on the exact sub-model and whether the tire is for the front or rear. Pure and Passion front applications use 155/60R15, while many rear applications use 175/55R15. The BRABUS setup differs, using 175/55R15 at the front and 215/35R17 at the rear.
The practical takeaway is that this Fortwo does not have a one-size-fits-all tire setup. Tire selection starts with confirming the exact trim and wheel position, then checking the actual wheel diameter on the car. That is especially important on used Fortwos, since aftermarket wheels or prior tire replacements can blur the original staggered arrangement.
What size rim does a 2009 Smart Fortwo use?
The 2009 Smart Fortwo uses both 15-inch and 17-inch rims, depending on the tire size and configuration. The 155/60R15 and 175/55R15 sizes are mounted on 15-inch rims, while the 215/35R17 size uses a 17-inch rim. That larger rim size is part of the BRABUS rear fitment.
Rim diameter should be confirmed before choosing any replacement tire because a 15-inch and 17-inch setup are not interchangeable. On a Fortwo with mixed wheel history, checking the wheel itself is better than assuming by appearance alone. A correct tire match also depends on keeping the proper front and rear positions straight.
Do all 2009 Smart Fortwo sub-models use the same tire size?
No, 2009 Smart Fortwo sub-models do not all use the same tire size. Pure and Passion models use 155/60R15 in front and 175/55R15 in the rear, while the BRABUS arrangement changes to 175/55R15 in front and 215/35R17 in the rear. The difference is tied to both trim level and axle position.
That means the first identification step is the specific Fortwo version, followed by whether the tire is for the front or rear. A buyer who skips that step can easily end up comparing the wrong size. On a car that has been modified, confirming the actual wheel diameter at each corner is just as important.
Choosing the Right Tire
What should I consider when choosing a tire for a 2009 Smart Fortwo?
The main factors are the exact tire size, the wheel position, and the rim diameter already on the car. A 2009 Smart Fortwo uses a staggered setup in several configurations, so the correct front tire may be different from the rear. Construction is straightforward here because all primary fitments are radial.
After size and position are confirmed, compare the tire's intended use with how the car is driven. A stock city car, a BRABUS setup, and a Fortwo with aftermarket wheels can lead to different priorities. Clearance, wheel condition, and keeping the proper front-to-rear balance all matter more than choosing by appearance alone.
How do I choose between the available 15-inch tire sizes for a 2009 Smart Fortwo?
The 15-inch choices on a 2009 Smart Fortwo are 155/60R15 and 175/55R15, but they do not serve the same role. The 155/60R15 size is used on several front applications, while 175/55R15 appears on many rear applications and also on the BRABUS front setup. The decision is based on vehicle configuration and position, not preference alone.
A good selection process starts by checking the wheel location and reading the current wheel or tire size before ordering anything. Fortwos are compact enough that a wrong-size choice can affect clearance and the intended staggered setup. On a used car, it is wise to confirm that prior owners did not mix sizes during past replacements.
What should I compare when choosing a 215/35R17 tire for a 2009 Smart Fortwo?
The 215/35R17 size is the rear fitment used on the 2009 Smart Fortwo BRABUS configuration, so the first comparison point is confirming that the car still has the correct 17-inch rear wheels. After that, the key consideration is staying within the proper size rather than substituting a different 17-inch tire by appearance.
A low-profile rear tire deserves careful attention to wheel condition, sidewall condition, and available clearance around the rear suspension and bodywork. Since the Fortwo uses position-specific sizing, matching the rear setup correctly helps preserve the intended balance of the car. Any modified suspension or non-stock wheel should be checked before replacement.
Restoration & Appearance
Which tire should I choose for a period-style 2009 Smart Fortwo?
A period-style choice for a 2009 Smart Fortwo starts with keeping the original size pattern for the exact sub-model and wheel position. That means 155/60R15 and 175/55R15 for many Pure and Passion applications, or the BRABUS-specific combination of 175/55R15 front and 215/35R17 rear. Staying with the proper dimensions preserves the car's intended visual stance.
Because this is a modern compact rather than a prewar or muscle-era vehicle, appearance usually comes more from maintaining the correct stagger and wheel diameter than from vintage sidewall treatments. Buyers focused on authenticity should compare the car against original owner literature, period photos, or marque-specific references before making appearance-driven changes.
Does correct tire fitment matter for a 2009 Smart Fortwo restoration?
Yes, correct tire fitment matters on a 2009 Smart Fortwo restoration because the car's proportions are closely tied to its staggered wheel-and-tire setup. A mismatch in front-to-rear sizing can alter the way the car sits and can also move the finished restoration away from the intended look of that specific configuration.
Restoration-minded owners should verify trim level, wheel diameter, and front-versus-rear sizing before replacing anything. That is especially important with BRABUS cars, where the rear 17-inch fitment is a visible part of the package. On any Fortwo being returned to stock form, checking the actual wheels already installed is a useful first step.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 Smart Fortwo?
Yes, modifications can affect tire fitment on a 2009 Smart Fortwo, especially because the car already uses position-specific sizing and, in some versions, different rim diameters front to rear. Aftermarket wheels, suspension changes, spacers, or prior owner substitutions can all change the space available for the tire and alter which size is currently on the car.
That makes a physical inspection important before replacement. Check the wheel diameter at each corner, confirm the installed tire size, and look for any signs of rubbing near the fender, suspension, or steering components. A Fortwo with non-stock wheels should always be measured and inspected instead of assuming original fitment remains intact.
What should I inspect before driving a 2009 Smart Fortwo on new tires?
Before driving a 2009 Smart Fortwo on new tires, inspect wheel condition, valve stems, inflation pressure, and the basic condition of the suspension and steering components. Make sure each tire is mounted in the correct front or rear position and that the wheel diameters match the intended size. The Fortwo's staggered arrangement leaves less room for guesswork.
A short test drive should be followed by another check for air loss, unusual contact marks, or any sign that the tire is too close to a body or suspension surface. Cars that sit for long periods also deserve a look at brake condition and alignment-related wear. Early inspection helps catch fitment issues before regular use.
How often should tires on a 2009 Smart Fortwo be inspected?
Tires on a 2009 Smart Fortwo should be inspected regularly, with extra attention on a car that sees infrequent use or urban curb exposure. Look at tread wear, sidewall condition, air pressure, and any visible cuts or bulges. Because the Fortwo uses different sizes by position in many configurations, each corner should be checked individually.
A monthly visual inspection is a sensible routine, and another check before a longer drive is worthwhile. Uneven wear can signal inflation, alignment, or suspension issues that matter even more on a short-wheelbase car. It also helps to verify occasionally that front and rear sizes have not been mixed during previous service work.
