2026 Mercedes-Benz CLA Bolt Pattern & Tire Size
The 2026 Mercedes-Benz CLA OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2026 Mercedes-Benz CLA has a 5x112 bolt pattern, an OEM tire size of 225/45R18, and a 66.6mm center bore.
Other years of the Mercedes-Benz CLA
2026 Mercedes-Benz CLA Engine & Trim Levels
Detailed tire and wheel breakdown for the 2026 Mercedes-Benz CLA
Tire geometry â 225/45R18
The 225/45R18 fitted to the 2026 Mercedes-Benz CLA has a section width of 225mm and an aspect ratio of 45%, mounted on a 18-inch rim. That gives a sidewall height of 101.3mm (3.99") and an overall outside diameter of 659.7mm (25.97"). At highway speed this tire completes roughly 483 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2026 Mercedes-Benz CLA while keeping the speedometer accurate, target a 235/38R19 (plus-one). For a softer ride or winter setup, a 215/53R17 (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 2026 Mercedes-Benz CLA uses a 5x112 bolt pattern with a 66.6mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET44 â ET54 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2026 Mercedes-Benz CLA 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%.
OEM Wheel & Tire Specs
| Engine & Trim | Tire Size | Rim Size | Offset (ET) | |
|---|---|---|---|---|
| CLA250 | 18x7.5J | ET49 | ||
| AMG CLA45 S | 19x9.0J | ET52 |
Frequently Asked Questions
What tire size does the 2026 Mercedes-Benz CLA CLA250 use?
The 2026 Mercedes-Benz CLA CLA250 uses 225/45R18 tires as standard equipment.
What tire size does the 2026 Mercedes-Benz CLA AMG CLA45 S use?
The 2026 Mercedes-Benz CLA AMG CLA45 S uses 255/35ZR19 tires as standard equipment.
What is the bolt pattern of the 2026 Mercedes-Benz CLA?
The 2026 Mercedes-Benz CLA has a 5x112 bolt pattern with a center bore of 66.6mm.
What is the wheel offset of the 2026 Mercedes-Benz CLA?
The 2026 Mercedes-Benz CLA has a wheel offset of ET49.
Other Vehicles with 5x112 Bolt Pattern
The following vehicles share the same 5x112 bolt pattern as the 2026 Mercedes-Benz CLA, making wheel interchangeability possible (verify offset and center bore before swapping).