2012 Infiniti G37 Bolt Pattern & Tire Size
The 2012 Infiniti G37 OEM tire size, bolt pattern, and wheel specifications are listed below. All data is based on industry-standard OEM reference specifications.
The 2012 Infiniti G37 has a 5x114.3 bolt pattern, an OEM tire size of 225/50R18, and a 66.1mm center bore.
2012 Infiniti G37 Engine & Trim Levels
Detailed tire and wheel breakdown for the 2012 Infiniti G37
Tire geometry â 225/50R18
The 225/50R18 fitted to the 2012 Infiniti G37 has a section width of 225mm and an aspect ratio of 50%, mounted on a 18-inch rim. That gives a sidewall height of 112.5mm (4.43") and an overall outside diameter of 682.2mm (26.86"). At highway speed this tire completes roughly 467 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2012 Infiniti G37 while keeping the speedometer accurate, target a 235/42R19 (plus-one). For a softer ride or winter setup, a 215/58R17 (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 2012 Infiniti G37 uses a 5x114.3 bolt pattern with a 66.1mm hub bore. Safe rim width range for the OEM tire is 7.0J â 8.0J, and offsets in the ET40 â ET50 window will clear suspension and fender without rubbing on most setups.
Staggered setup notes
The 2012 Infiniti G37 ships staggered: 225/50R18 up front and 245/45R18 on the rear. That is a 245mm vs 225mm width difference â do not rotate front-to-rear, and replace tires in axle pairs to keep ABS and traction control balanced.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2012 Infiniti G37 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) | |
|---|---|---|---|---|
| Journey Sport | Rear: 245/45R18 | 18x7.5J | ET45 |
Frequently Asked Questions
What tire size does the 2012 Infiniti G37 Journey Sport use?
The 2012 Infiniti G37 Journey Sport uses 225/50R18 tires as standard equipment.
What is the bolt pattern of the 2012 Infiniti G37?
The 2012 Infiniti G37 has a 5x114.3 bolt pattern with a center bore of 66.1mm.
What is the wheel offset of the 2012 Infiniti G37?
The 2012 Infiniti G37 has a wheel offset of ET45.
Other Vehicles with 5x114.3 Bolt Pattern
The following vehicles share the same 5x114.3 bolt pattern as the 2012 Infiniti G37, making wheel interchangeability possible (verify offset and center bore before swapping).