2008 GMC Canyon Z85
The 2008 GMC Canyon Z85 tire size and wheel specifications below reflect standard OEM reference fitment data for this trim level.
Detailed tire and wheel breakdown for the 2008 GMC Canyon
Tire geometry â 225/75R15
The 225/75R15 fitted to the 2008 GMC Canyon has a section width of 225mm and an aspect ratio of 75%, mounted on a 15-inch rim. That gives a sidewall height of 168.8mm (6.64") and an overall outside diameter of 718.5mm (28.29"). At highway speed this tire completes roughly 443 revolutions per kilometre, which is what your speedometer and odometer are calibrated against.
Plus-sizing window
If you want to upsize wheels on the 2008 GMC Canyon while keeping the speedometer accurate, target a 235/66R16 (plus-one). For a softer ride or winter setup, a 215/84R14 (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 2008 GMC Canyon uses a 6x139.7 bolt pattern with a 100.3mm hub bore. Safe rim width range for the OEM tire is 6.0J â 7.0J, and offsets in the ET18 â ET28 window will clear suspension and fender without rubbing on most setups.
Tire pressure guidance
Manufacturer-recommended cold tire pressure for the 2008 GMC Canyon 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) |
|---|---|---|---|
| Z85 | 225/75R15 | 15" x 6.5 | ET23 |
Frequently Asked Questions
What tire size does the 2008 GMC Canyon Z85 use?
The 2008 GMC Canyon Z85 uses 225/75R15 tires as standard equipment.
What is the bolt pattern of the 2008 GMC Canyon Z85?
The 2008 GMC Canyon Z85 has a 6x139.7 bolt pattern with a center bore of 100.3mm.
What is the wheel offset of the 2008 GMC Canyon Z85?
The 2008 GMC Canyon Z85 has a wheel offset of ETET23.