The 2018 Mazda Trucks CX-3 brought Mazda’s small crossover formula into a sharper, more driver-focused shape, blending compact dimensions with styling and road manners that appealed to buyers who wanted more character than a typical subcompact utility vehicle. For tire selection, the important detail is that this CX-3 uses two different radial sizes depending on trim: 215/60R16 or 215/50R18. That means the first step is confirming whether the vehicle is a Sport, Touring, or Grand Touring model. Once that is settled, the decision shifts to staying with the proper metric radial size and verifying wheel diameter before comparing replacement tires for appearance, road use, and overall fitment.
Which Tire Size Is Right for The 2018 Mazda Trucks CX-3
The 2018 Mazda Trucks CX-3 uses two primary tire sizes, and the correct one depends on the sub-model and wheel diameter. Both sizes are radial metric fitments, but one is built for a 16-inch rim and the other for an 18-inch rim. Before choosing a tire, confirm whether the CX-3 is a Sport, Touring, or Grand Touring model and make sure the wheels on the vehicle still match that original diameter.
The size 215/50R18 identifies a metric radial tire with a 215-millimeter section width, a 50-series aspect ratio, and fitment for an 18-inch wheel. On the 2018 Mazda Trucks CX-3, this is the radial size used on the Touring and Grand Touring sub-models. Its lower-profile format gives the buyer a more wheel-diameter-specific fitment decision than a vintage numeric size would. This size should be chosen only after confirming that the vehicle has the correct 18-inch wheel setup, especially if wheels have ever been changed from stock dimensions.
The size 215/60R16 identifies a metric radial tire with a 215-millimeter section width, a 60-series aspect ratio, and fitment for a 16-inch wheel. On the 2018 Mazda Trucks CX-3, this size applies to the Sport sub-model rather than the 18-inch-wheel trims. Compared with the 18-inch fitment, the main buyer consideration here is confirming the smaller wheel diameter before moving into tire selection. This is the right path for owners keeping a Sport-model wheel setup or checking a vehicle that may have had wheels changed at some point.
Tire fitment on the 2018 Mazda Trucks CX-3 varies by sub-model, so trim identification matters before anything else. Sport uses a different wheel and tire size than Touring and Grand Touring, making wheel-diameter confirmation just as important as reading the sidewall.
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2018 Mazda Trucks CX-3 Grand Touring
The 2018 Mazda Trucks CX-3 Grand Touring uses the 215/50R18 radial tire size. That makes 18-inch wheel confirmation the key first step before comparing replacement tires or checking whether the vehicle is still running its original-style wheel setup.
The 2018 Mazda Trucks CX-3 Sport uses the 215/60R16 radial tire size. This trim follows the 16-inch wheel fitment, so tire selection should begin by confirming that the vehicle has not been changed to a different wheel diameter.
The 2018 Mazda Trucks CX-3 Touring uses the 215/50R18 radial tire size, matching the Grand Touring fitment rather than the Sport model. For tire selection, that means focusing on the correct 18-inch radial size and verifying the actual wheel package on the vehicle before purchase.
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
Tire questions for the 2018 Mazda Trucks CX-3 usually come down to trim-specific sizing, 16-inch versus 18-inch wheel fitment, and how to confirm the right radial tire before replacement. The answers below focus on exact size selection, sub-model differences, and practical checks before road use.
Tire Size & Fitment
What tire size fits a 2018 Mazda Trucks CX-3?
The 2018 Mazda Trucks CX-3 uses either 215/50R18 or 215/60R16, depending on sub-model. Touring and Grand Touring use 215/50R18, while Sport uses 215/60R16. Both are radial metric tire sizes, but they are tied to different wheel diameters, so they are not interchangeable simply by matching overall vehicle model.
The practical first step is identifying the trim and confirming the wheel diameter currently on the vehicle. A CX-3 that has had wheel changes in the past may no longer match its original sub-model setup, so checking the sidewall and the wheel itself helps prevent choosing the wrong size.
What size rim does a 2018 Mazda Trucks CX-3 use?
A 2018 Mazda Trucks CX-3 uses either a 16-inch rim or an 18-inch rim, depending on sub-model. The Sport model uses the 16-inch setup with 215/60R16 tires, while Touring and Grand Touring use the 18-inch setup with 215/50R18 tires. Rim diameter is a core part of the tire size and must match exactly.
That means a buyer should confirm the actual wheel diameter before selecting tires, especially on a used vehicle. Even when the overall tire diameter is fairly close between the two sizes, the tire bead must match the wheel diameter exactly, and a 16-inch tire cannot be mounted on an 18-inch wheel.
Do all 2018 Mazda Trucks CX-3 sub-models use the same tire size?
No, all 2018 Mazda Trucks CX-3 sub-models do not use the same tire size. Sport uses 215/60R16, while Touring and Grand Touring use 215/50R18. The difference is not just sidewall profile; it also reflects two different rim diameters, so trim level plays a direct role in tire selection.
That makes sub-model confirmation especially important when replacing a full set or ordering a single tire to match the others. Looking at the trim badge helps, but the safest check is reading the current sidewall size and verifying that the wheels still match the intended 16-inch or 18-inch configuration.
Choosing the Right Tire
What should I consider when choosing a tire for a 2018 Mazda Trucks CX-3?
Start with the correct trim-specific size: 215/60R16 for Sport or 215/50R18 for Touring and Grand Touring. On this vehicle, the most important selection factor is not choosing between constructions, since both primary fitments are radial, but making sure the tire matches the actual wheel diameter on the vehicle.
After size is confirmed, compare the tire’s intended road use, sidewall profile, and how closely it matches the vehicle’s existing setup. A used CX-3 may have aftermarket wheels or mixed tire replacements, so checking all four tires and both wheel diameter and width helps avoid fitment problems or inconsistent handling.
How do I choose between the available tires for a 2018 Mazda Trucks CX-3?
The right starting point is choosing within the correct size rather than trying to compare 16-inch and 18-inch tires directly. A 2018 Mazda Trucks CX-3 Sport should stay within the 215/60R16 fitment range, while Touring and Grand Touring owners should focus on 215/50R18 options that match the vehicle’s wheel setup.
From there, compare the tire’s overall character to how the vehicle is used, whether that means everyday road driving, seasonal use, or replacing one tire to match an existing set. It also helps to confirm wheel condition, check for any suspension changes, and make sure clearance remains consistent at full steering lock.
What tire size should I use for my 2018 Mazda Trucks CX-3 sub-model?
The tire size depends on the exact sub-model. A 2018 Mazda Trucks CX-3 Sport uses 215/60R16, while the Touring and Grand Touring use 215/50R18. Because those sizes mount on different rim diameters, the trim level is not a minor detail; it is central to choosing the correct replacement tire.
If the vehicle was purchased used, confirm the current wheels before relying on trim alone. Wheel swaps are common enough that reading the sidewall and measuring the wheel diameter can prevent ordering the wrong tire, especially when replacing only one or two tires rather than starting over with a full set.
Restoration & Appearance
Does correct tire fitment matter for a 2018 Mazda Trucks CX-3 restoration or appearance refresh?
Yes, correct tire fitment still matters even on a newer vehicle like the 2018 Mazda Trucks CX-3. The vehicle’s appearance and stance are tied closely to whether it is running the proper 215/60R16 Sport setup or the 215/50R18 Touring and Grand Touring setup. Using the wrong size can change the overall visual balance.
An appearance-focused refresh should begin with confirming which trim the vehicle represents and whether the wheels are appropriate to that version. Buyers trying to return a used CX-3 to a more original-looking presentation should check the current wheel diameter first, then choose a tire size that matches that intended trim configuration.
How does tire profile affect the appearance of a 2018 Mazda Trucks CX-3?
Tire profile changes the look of the 2018 Mazda Trucks CX-3 because the vehicle uses either a 60-series sidewall on a 16-inch wheel or a 50-series sidewall on an 18-inch wheel. Those two combinations create noticeably different proportions between tire sidewall and visible wheel face, even when overall diameter stays in a similar range.
That matters when preserving the visual character of a Sport versus a Touring or Grand Touring model. Before changing sizes for appearance reasons, confirm wheel diameter, clearance, and the actual setup already on the vehicle so the finished look remains consistent with the trim and does not create avoidable fitment issues.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2018 Mazda Trucks CX-3?
Yes, modifications can affect tire fitment on a 2018 Mazda Trucks CX-3. Changes such as aftermarket wheels, different offsets, suspension lowering, or body modifications can alter the space available for either the 215/60R16 or 215/50R18 tire size. Even when the tire size remains the same, the wheel setup can change how it fits.
A modified CX-3 should be checked for steering clearance, inner-fender clearance, and suspension travel before replacement tires are chosen. It is also smart to confirm that all four wheels match in diameter and width, since mixed setups can create confusion when ordering tires and can affect road manners.
What should I inspect before driving a 2018 Mazda Trucks CX-3 on new tires?
Before driving a 2018 Mazda Trucks CX-3 on new tires, inspect wheel condition, confirm the tire size matches the trim and wheel diameter, and make sure each tire is properly inflated. It is also wise to look over the valve stems, check for any obvious alignment issues, and verify that nothing rubs at full steering lock.
A short test drive should include listening for rubbing, vibration, or pulling that was not present before. Rechecking pressure after the first miles and confirming lug torque helps complete the installation process, especially if the vehicle has aftermarket wheels or has been sitting long enough for other issues to develop.
How often should tires on a 2018 Mazda Trucks CX-3 be inspected?
Tires on a 2018 Mazda Trucks CX-3 should be inspected regularly, not just when tread looks low. Routine checks should include air pressure, visible tread wear, cuts, punctures, sidewall damage, and signs of uneven wear that may point to alignment or suspension issues. That applies whether the vehicle uses 215/60R16 or 215/50R18 tires.
A quick visual inspection every month and a closer check before longer trips is a sensible habit. Vehicles that are driven less often still need attention, since age, slow air loss, and sitting in one position can affect tire condition even when miles accumulate slowly over time.
