2021 Mazda CX-3 Grand Touring
The 2021 Mazda CX-3 Grand Touring tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2021 Mazda CX-3
Tire geometry â 215/50R18
The 215/50R18 fitted to the 2021 Mazda CX-3 has a section width of 215mm and an aspect ratio of 50%, mounted on a 18-inch rim. That gives a sidewall height of 107.5mm (4.23") and an overall outside diameter of 672.2mm (26.46"). At highway speed this tire completes roughly 474 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2021 Mazda CX-3 while keeping the speedometer accurate, target a 225/42R19 (plus-one). For a softer ride or winter setup, a 205/59R17 (minus-one) keeps the overall diameter within Âą3% of stock, which is the industry tolerance for ABS and stability control to stay calibrated.
Wheel fitment specs
The 2021 Mazda CX-3 uses a 5x114.3 bolt pattern with a 67.1mm hub bore. Safe rim width range for the OEM tire is 6.5J â 7.5J, and offsets in the ET45 â ET55 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2021 Mazda CX-3 is printed on the driver-side door jamb sticker â always defer to that value, not to the maximum pressure printed on the tire sidewall. Check pressure monthly and before long trips; under-inflation by 20% can reduce tread life by 25%.
Fitment Specifications
| Engine & Trim | Tire Size | Rim Size | Offset (ET) |
|---|---|---|---|
| Grand Touring | 215/50R18 | 18" x 7.0 | ET50 |
Frequently Asked Questions
What tire size does the 2021 Mazda CX-3 Grand Touring use?
The 2021 Mazda CX-3 Grand Touring uses 215/50R18 tires as standard equipment.
What is the bolt pattern of the 2021 Mazda CX-3 Grand Touring?
The 2021 Mazda CX-3 Grand Touring has a 5x114.3 bolt pattern with a center bore of 67.1mm.
What is the wheel offset of the 2021 Mazda CX-3 Grand Touring?
The 2021 Mazda CX-3 Grand Touring has a wheel offset of ETET50.