The 2005 Chevrolet Corvette has a 5x120.65 bolt pattern, an OEM tire size of 245/40R18, and a 70.3mm center bore.

Other years of the Chevrolet Corvette

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2005 Chevrolet Corvette Engine & Trim Levels

Base
Bolt Pattern5x120.65
Center Bore70.3
Stud SizeM 12x1.5
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Detailed tire and wheel breakdown for the 2005 Chevrolet Corvette

Tire geometry — 245/40R18

The 245/40R18 fitted to the 2005 Chevrolet Corvette has a section width of 245mm and an aspect ratio of 40%, mounted on a 18-inch rim. That gives a sidewall height of 98.0mm (3.86") and an overall outside diameter of 653.2mm (25.72"). At highway speed this tire completes roughly 487 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.

Plus-sizing window

If you want to upsize wheels on the 2005 Chevrolet Corvette while keeping the speedometer accurate, target a 255/33R19 (plus-one). For a softer ride or winter setup, a 235/47R17 (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 2005 Chevrolet Corvette uses a 5x120.65 bolt pattern with a 70.3mm hub bore. Safe rim width range for the OEM tire is 8.0J – 9.0J, and offsets in the ET51 – ET61 window will clear suspension and fender without rubbing on most setups.

Staggered setup notes

The 2005 Chevrolet Corvette ships staggered: 245/40R18 up front and 285/35R19 on the rear. That is a 285mm vs 245mm width difference — 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 2005 Chevrolet Corvette is printed on the driver-side door jamb sticker — 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 & TrimTire SizeRim SizeOffset (ET)
Base
Rear: 285/35R19
18x8.5JET56

Frequently Asked Questions

What tire size does the 2005 Chevrolet Corvette Base use?

The 2005 Chevrolet Corvette Base uses 245/40R18 tires as standard equipment.

What is the bolt pattern of the 2005 Chevrolet Corvette?

The 2005 Chevrolet Corvette has a 5x120.65 bolt pattern with a center bore of 70.3mm.

What is the wheel offset of the 2005 Chevrolet Corvette?

The 2005 Chevrolet Corvette has a wheel offset of ET56.

Other Vehicles with 5x120.65 Bolt Pattern

The following vehicles share the same 5x120.65 bolt pattern as the 2005 Chevrolet Corvette, making wheel interchangeability possible (verify offset and center bore before swapping).