The 2013 BMW 320i sits in the F30 generation, a compact sport sedan shaped around balanced road manners, crisp steering, and everyday usability. Buyers often approach this car expecting modern tire sizing, but the exact fitment still depends on whether the car carries the standard wheel setup or the staggered M Sport package arrangement. This 320i uses radial tires in 225/50R17, 225/45R18, and 255/40R18 sizes. Available choices center on blackwall performance-oriented radial lines from BFGoodrich and Nitto. The key is matching the correct size to the car’s wheel package first, then choosing the tire series that best suits appearance, intended driving, and wheel compatibility.
Which Tire Size Is Right for The 2013 BMW 320i
Three tire sizes apply to the 2013 BMW 320i, and they do not all serve the same configuration. The first step is identifying the exact wheel setup, because this car uses both 17-inch and 18-inch rim diameters, and the M Sport package uses a staggered front-and-rear arrangement. Once the correct size is confirmed, the decision shifts to tire series, brand, and the wheel-width range that matches the car’s current wheels.
225/45R18 is a metric radial size in which 225 identifies nominal section width in millimeters, 45 is the aspect ratio, R denotes radial construction, and 18 is the wheel diameter in inches. On the 2013 BMW 320i, this size is used with 18-inch wheel setups and also serves as the front tire size on the M Sport package. Available choices include BFGoodrich and Nitto blackwall radials across series such as g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and NT555 G2. It is the right size to evaluate when the car already wears 18-inch front wheels and the goal is maintaining the intended front fitment.
225/50R17 follows the same modern metric radial format: 225 millimeters of nominal width, a 50-series profile, radial construction, and a 17-inch rim. On the 2013 BMW 320i, this size belongs to the standard 17-inch wheel fitment rather than the staggered M Sport front-and-rear setup. BFGoodrich and Nitto both offer blackwall radial choices in this size, with series including g-Force Comp 2 AS, g-Force Sport Comp 2, and NT555 G2. This is the size to focus on when the car retains its 17-inch wheels and the buyer wants the correct fitment without moving into the 18-inch package.
255/40R18 is a wider metric radial size, with 255 millimeters of nominal section width, a 40-series profile, radial construction, and an 18-inch wheel diameter. For the 2013 BMW 320i, this size is used on the rear of the staggered M Sport package, where it works with a different front tire size rather than as a four-corner fitment. Product choices are blackwall radials from BFGoodrich in several g-Force series. This size matters most when the car has the M Sport rear wheel setup and the rear wheel width matches the broader tire requirement.
Sub-model fitment matters on the 2013 BMW 320i because the standard setup and the M Sport package do not use the same tire arrangement. The Base model can use either 17-inch or 18-inch fitment, while the M Sport package uses a staggered front-and-rear combination that should be matched carefully to the car’s actual wheels.
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2013 BMW 320i Base
The 2013 BMW 320i Base uses either a 225/50R17 radial or a 225/45R18 radial, depending on the wheel package on the car. Tire selection starts with confirming whether the car has 17-inch or 18-inch wheels, then comparing series and wheel-width compatibility within that size.
The 2013 BMW 320i w/M Sport Pkg. Front uses a 225/45R18 radial tire. That means front-tire selection should stay focused on the correct 18-inch front fitment and should be considered alongside the matching rear size when preserving the staggered setup.
The 2013 BMW 320i w/M Sport Pkg. Rear uses a 255/40R18 radial tire. Rear tire selection should account for the wider wheel requirement typical of this size and should stay coordinated with the front tire size already used on the M Sport package.
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 2013 BMW 320i Tires for Sale
Available 2013 BMW 320i tire choices center on BFGoodrich and Nitto radial blackwall products in the 225/50R17, 225/45R18, and 255/40R18 sizes. The main differences in the product grid are tire series and the wheel-width ranges each size is designed to work with.
Common 2013 BMW 320i tire questions usually come down to the exact size for the car’s wheel package, the difference between Base and M Sport fitment, and how to compare available radial tire series before putting the car back on the road.
Tire Size & Fitment
What tire size fits a 2013 BMW 320i?
The 2013 BMW 320i uses three radial tire sizes: 225/50R17, 225/45R18, and 255/40R18. The Base model uses either 225/50R17 or 225/45R18 depending on wheel setup, while the M Sport package uses 225/45R18 on the front and 255/40R18 on the rear.
The practical step is confirming which wheels are actually on the car before choosing tires. A 17-inch Base setup calls for a different tire than an 18-inch Base setup, and the M Sport package should keep its front and rear sizes in the proper staggered arrangement unless the wheel package has been changed.
What size rim does a 2013 BMW 320i use?
A 2013 BMW 320i uses either a 17-inch or an 18-inch rim, depending on configuration. The 225/50R17 tire belongs on a 17-inch wheel, while both 225/45R18 and 255/40R18 are 18-inch tire sizes used on 18-inch wheels.
Wheel diameter should be checked directly on the car before replacing tires, especially if the car has seen aftermarket wheel changes. On M Sport cars, rim diameter alone is not enough, because the front and rear also use different tire widths and should be matched to the correct wheel positions.
Do all 2013 BMW 320i sub-models use the same tire size?
No. The 2013 BMW 320i Base can use either 225/50R17 or 225/45R18, while the M Sport package uses a staggered setup with 225/45R18 in front and 255/40R18 in the rear. That means sub-model and wheel position both matter when selecting tires.
This distinction matters because choosing by year, make, and model alone can still leave room for error. A buyer should confirm whether the car is a standard Base setup or an M Sport package car, then verify wheel diameter and whether the tire being replaced is for the front or rear axle.
Choosing the Right Tire
What should I consider when choosing a 2013 BMW 320i tire?
Start with the correct size for the car’s actual wheel setup: 225/50R17, 225/45R18, or 255/40R18. From there, compare radial tire series, brand options, sidewall style, and the wheel-width range that matches the wheels currently on the car.
The 2013 BMW 320i is sensitive to setup details because a standard four-corner arrangement differs from the staggered M Sport package. Tire choice should also reflect how the car is used, whether that means everyday street driving, a more performance-oriented feel, or simply replacing worn tires while keeping the existing wheel package intact.
What brands offer tires for the 2013 BMW 320i?
Tires for the 2013 BMW 320i are available from BFGoodrich and Nitto in the sizes used on this model. BFGoodrich appears across all three supported sizes, while Nitto is available in the 225/50R17 and 225/45R18 fitments.
Brand is only one part of the decision. It still makes sense to compare the exact tire series offered in the needed size, along with wheel-width compatibility and any load information attached to the product, especially on an M Sport car where the wider rear tire has a more specific role in the overall setup.
What tire series are available for the 2013 BMW 320i?
The 2013 BMW 320i is offered with several radial tire series, including BFGoodrich g-Force Comp 2 AS, g-Force Sport Comp 2, g-Force Phenom T/A, and Nitto NT555 G2. Not every series appears in every size, so the exact wheel package still determines which choices are relevant.
Series selection helps narrow the field once the tire size is confirmed. A buyer comparing products should look at which series are available in the needed front or rear size, then review wheel-width suitability and other product details so the final choice matches both the car’s setup and the intended use.
Restoration & Appearance
Which tire should I choose for a period-style 2013 BMW 320i?
A period-style 2013 BMW 320i should begin with the correct modern radial size for the car’s actual wheel package, not with a substitute size chosen only for appearance. That means 225/50R17 or 225/45R18 for the Base model, or the 225/45R18 front and 255/40R18 rear combination for the M Sport package.
Appearance on a car of this era is usually more about preserving the intended wheel-and-tire stance than chasing vintage sidewall treatments. Since the available products are blackwall radials, the better comparison points are correct sizing, proportional fit on the wheel, and a tire series that suits the way the car is presented and driven.
Does correct tire fitment matter for a 2013 BMW 320i restoration?
Yes. Even on a newer collector-minded BMW, correct tire fitment affects stance, wheel-to-tire proportion, and the overall presentation of the car. The 2013 BMW 320i also uses more than one factory-style size arrangement, so restoration-minded buyers need to match the tire choice to the wheel package actually being preserved.
That matters most on M Sport cars, where the staggered front-and-rear sizing is part of the setup. Before replacing tires, it helps to verify wheel diameter, wheel width, and whether the car still wears its intended wheel package, because those details shape both the visual result and the fitment outcome.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2013 BMW 320i?
Yes. Wheel changes, altered wheel width, offset changes, lowering, and suspension modifications can all affect tire fitment on a 2013 BMW 320i. That is especially important on cars using 18-inch tires and on M Sport package cars that already have a staggered front-and-rear arrangement.
A tire that matches the original size code still needs to work with the actual wheels and body clearance on the car as it sits today. It is smart to check wheel diameter, width, steering clearance, rear clearance, and any signs of rubbing before assuming the current setup should simply be repeated.
What should I inspect before driving a 2013 BMW 320i on new tires?
Before driving a 2013 BMW 320i on new tires, inspect wheel condition, confirm the tire sizes match the correct positions, and make sure inflation is set appropriately for the installed tires and wheel package. It also helps to verify that the tires seat properly and that there is no interference at full steering lock.
A broader road-use check should include suspension condition, alignment behavior, and any evidence of uneven wear from the previous tires. On a staggered setup, confirm that the front and rear tires were not accidentally mixed, since maintaining the intended axle placement matters to both fitment and driving feel.
How often should tires on a 2013 BMW 320i be inspected?
Tires on a 2013 BMW 320i should be inspected regularly for tread wear, punctures, sidewall damage, and air-pressure loss. A car that sees occasional use still benefits from routine checks, because tire condition can change with storage time, temperature swings, and simple age even when mileage stays low.
Inspection is also a good time to watch for uneven wear that may point to alignment or suspension issues. On a 320i with staggered M Sport sizing, make sure attention is given to both axles separately, since front and rear tires are different sizes and should be evaluated in the positions where they actually run.
