1997 Porsche 911 Carrera
The 1997 Porsche 911 Carrera tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 1997 Porsche 911
Tire geometry â 205/50R17
The 205/50R17 fitted to the 1997 Porsche 911 has a section width of 205mm and an aspect ratio of 50%, mounted on a 17-inch rim. That gives a sidewall height of 102.5mm (4.04") and an overall outside diameter of 636.8mm (25.07"). At highway speed this tire completes roughly 500 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 1997 Porsche 911 while keeping the speedometer accurate, target a 215/42R18 (plus-one). For a softer ride or winter setup, a 195/59R16 (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 1997 Porsche 911 uses a 5x130 bolt pattern with a 71.6mm hub bore. Safe rim width range for the OEM tire is 6.5J â 7.5J, and offsets in the ET50 â ET60 window will clear suspension and fender without rubbing on most setups.
Staggered setup notes
The 1997 Porsche 911 ships staggered: 205/50R17 up front and 255/40R17 on the rear. That is a 255mm vs 205mm 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 1997 Porsche 911 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) |
|---|---|---|---|
| Carrera | 205/50R17 Rear: 255/40R17 | 17" x 7.0 | ET55 |
Frequently Asked Questions
What tire size does the 1997 Porsche 911 Carrera use?
The 1997 Porsche 911 Carrera uses 205/50R17 tires as standard equipment.
What is the bolt pattern of the 1997 Porsche 911 Carrera?
The 1997 Porsche 911 Carrera has a 5x130 bolt pattern with a center bore of 71.6mm.
What is the wheel offset of the 1997 Porsche 911 Carrera?
The 1997 Porsche 911 Carrera has a wheel offset of ETET55.