Chevrolet Colorado Bolt Pattern, Wheel & Tire Sizes
TL;DR
Bolt pattern is not the same across all Colorado generations - it switched to 6x120mm for the 2015-2022 US truck and back to 6x139.7mm for the 2023+ truck. Check your door placard or a wheel-fitment database by VIN before ordering rims.
Why the bolt pattern is not one number for every Colorado
The Chevrolet Colorado has been redesigned twice for the US market, and the wheel bolt pattern changed with it. Fitment databases confirm the first-generation truck (2004-2012) used a 6x139.7mm (6x5.5 inch) pattern, the second-generation truck (2015-2022) switched to a 6x120mm pattern, and the third-generation truck (2023-present) returned to 6x139.7mm. A wheel that fits one generation will very likely not bolt onto another, even though the vehicle name is unchanged.
Centre bore and stud thread
Centre bore and thread pitch also vary. First-generation trucks are most commonly listed with a 100.3mm centre bore and M12x1.5 stud thread, though a smaller share of configurations in fitment databases show a 78.1mm bore with M14x1.5 studs - if you own an early truck, verify which applies to your exact trim before assuming a bore adapter is unnecessary. Second-generation trucks are consistently listed at a 66.9mm centre bore with M14x1.5 studs. Third-generation trucks carry a larger 78.1mm centre bore, also with M14x1.5 studs.
Stock wheel and tire sizes
Factory wheel diameters ranged from 16 to 18 inches on the first generation, 16 to 20 inches on the second generation (ZR2 and higher trims running larger diameters), and 17 to 20 inches on the current third generation, with off-road trims like the ZR2 fitted with wider, more aggressive tires from the factory.
Confirm before you buy
Because pattern, bore and trim-level tire sizing all vary, do not rely on memory or general guides alone. Always cross-check against your own vehicle before ordering wheels or tires.
| Generation / years | Bolt pattern | Centre bore | Stud thread | Stock wheel sizes | Common tire sizes |
|---|---|---|---|---|---|
| 1st gen (2004-2012, USA) | 6x139.7mm | ~100.3mm on most trims (a minority of listings show 78.1mm) | M12x1.5 on most trims (minority M14x1.5) | 16-18 in | 235/75R16, 265/75R16, 245/75R16, 235/50R17, 235/50R18 |
| 2nd gen (2015-2022, USA) | 6x120mm | 66.9mm | M14x1.5 | 16-20 in | 265/70R16, 255/65R17, 265/60R18 |
| 3rd gen (2023-present, USA) | 6x139.7mm | 78.1mm | M14x1.5 | 17-20 in | 255/65R17 (WT/LT), 265/60R18 and 265/65R18 (Z71), 275/60R20 and 255/55R20 (Trail Boss), 285/70R17 (ZR2) |
Always verify on your own vehicle. The definitive source for your exact truck is the tire and loading information placard on the driver's door jamb, the markings stamped on your current wheels and tire sidewalls, and your owner's manual. These will list the exact factory bolt pattern, wheel size, tire size, and recommended tire pressure for your specific build.
Summary
| 1st gen bolt pattern (2004-2012) | 6x139.7mm |
|---|---|
| 2nd gen bolt pattern (2015-2022) | 6x120mm |
| 3rd gen bolt pattern (2023-present) | 6x139.7mm |
| 2nd gen centre bore | 66.9mm |
| 3rd gen centre bore | 78.1mm |
| Stud thread (2nd and 3rd gen) | M14x1.5 |
| Where to confirm your exact spec | Driver's door placard and owner's manual |
Full diagnostics
For the complete step-by-step diagnostic and repair guide, see Chevrolet Colorado: Common Problems, Fault Codes & Repairs.
Frequently asked questions
Is the Chevrolet Colorado bolt pattern the same on every model year?
No. The first-generation truck (2004-2012) and third-generation truck (2023-present) use a 6x139.7mm bolt pattern, but the second-generation truck (2015-2022) uses a different 6x120mm pattern. Wheels are not interchangeable across these generations without adapters, and adapters are not something to rely on for safety-critical fitment - confirm the pattern on your own vehicle first.
What centre bore does my Colorado need?
It depends on generation: second-generation trucks (2015-2022) use a 66.9mm centre bore, while third-generation trucks (2023-present) use a larger 78.1mm bore. First-generation trucks are most commonly listed at 100.3mm, though some configurations differ, so check your own wheel or a VIN-specific fitment lookup rather than assuming.
Can I put third-generation Colorado wheels on a second-generation truck?
Not directly. The bolt pattern differs (6x139.7mm on the third generation versus 6x120mm on the second generation) and the centre bore is also different (78.1mm versus 66.9mm), so factory wheels are not a straight swap between these two generations.
Where do I find the exact tire size for my specific Colorado?
Check the tire and loading placard on the driver's door jamb, the sidewall of your current tires, or your owner's manual - these reflect the exact size and pressure for your trim and are more reliable than a general guide, since sizes vary by trim (Z71, ZR2, Trail Boss, WT/LT) even within the same generation.