2021 Chevrolet Camaro SS 1LE
The 2021 Chevrolet Camaro SS 1LE tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2021 Chevrolet Camaro
Tire geometry â 285/30R20
The 285/30R20 fitted to the 2021 Chevrolet Camaro has a section width of 285mm and an aspect ratio of 30%, mounted on a 20-inch rim. That gives a sidewall height of 85.5mm (3.37") and an overall outside diameter of 679.0mm (26.73"). At highway speed this tire completes roughly 469 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 Chevrolet Camaro while keeping the speedometer accurate, target a 295/25R21 (plus-one). For a softer ride or winter setup, a 275/36R19 (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 Chevrolet Camaro uses a 5x120 bolt pattern with a 66.9mm hub bore. Safe rim width range for the OEM tire is 9.5J â 10.5J, and offsets in the ET15 â ET25 window will clear suspension and fender without rubbing on most setups.
Staggered setup notes
The 2021 Chevrolet Camaro ships staggered: 285/30R20 up front and 305/30R20 on the rear. That is a 305mm vs 285mm 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 2021 Chevrolet Camaro 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) |
|---|---|---|---|
| SS 1LE | 285/30R20 Rear: 305/30R20 | 20" x 10.0 | ET20 |
Frequently Asked Questions
What tire size does the 2021 Chevrolet Camaro SS 1LE use?
The 2021 Chevrolet Camaro SS 1LE uses 285/30R20 tires as standard equipment.
What is the bolt pattern of the 2021 Chevrolet Camaro SS 1LE?
The 2021 Chevrolet Camaro SS 1LE has a 5x120 bolt pattern with a center bore of 66.9mm.
What is the wheel offset of the 2021 Chevrolet Camaro SS 1LE?
The 2021 Chevrolet Camaro SS 1LE has a wheel offset of ETET20.