2026 model year · Third generation (2023-present)

Chevrolet Colorado tire size

Largest standard tire, 2026285/70R17

Maker32.7 in tall, nominal

The 2026 Chevrolet Colorado comes on 255/65R17, 285/70R17 or 265/65R18 tires as standard, by trim, per the 2026 Chevrolet Colorado Specifications. 255/55R20 comes with the Z71 with P255/55R20 all-season tires.

255/65R17: WT.

285/70R17: ZR2.

265/65R18: Z71, Trail Boss.

255/55R20: Z71 with the Z71 with P255/55R20 all-season tires.

2026 Chevrolet Colorado Specifications (pressroom product guide, specifications tab)

Standard sizes: 3
With a package: 255/55R20
Wheels: 17–20 in

2024 Chevrolet Colorado Trail Boss, front three-quarter view — Photo: Kevauto, CC BY-SA 4.0, via Wikimedia Commons, resized, licence plate blurred.

01 / Stock

Tires and wheels on every 2026 Colorado

The size each configuration leaves the factory on, and the one an option package swaps in.

2026 Chevrolet Colorado

MakerEstimate ±

Stock tire and wheel sizes of the 2026 Chevrolet Colorado by configuration
Configuration	Tire	Tall in, nominal	Wheel	Type
Standard
WT	P255/65R17^{source 1}	30.1	17x8 steel^{source 1}	all-season^{source 1}
LT	not in our data	not in our data	17x8 aluminum^{source 1}	not in our data
Z71, Trail Boss	P265/65R18^{source 1}	31.6	18x8.5 aluminum^{source 1}	all-terrain^{source 1}
ZR2	P285/70R17^{source 1}	32.7	17x8 aluminum^{source 1}	mud/terrain^{source 1}
With a factory package
Z71with Z71 with P255/55R20 all-season tires	P255/55R20^{source 1}	31.0	20 x 9.0 aluminum^{source 2}	all-season^{source 1}

Tire, wheel and fitment figures are the maker’s. “Tall” is worked out from the size code (dashed); a real tire measures a little differently. —: not in the documents we hold yet.

SourcesMakerThe small number by a figure says which document it is from.

Documents last checked Oct 6, 2026. How we read them and what the marks mean: how we source the numbers. A figure doesn’t match its document? Report a wrong number.

02 / Bigger tires

What the next sizes up change

From each stock size, the common larger sizes on the same wheel: how much taller, how far the axles rise, what the speedometer shows and how the axle ratio behaves. Whether one fits your Colorado depends on lift, wheel offset and trim; these figures don’t say.

From 255/65R17Stock on the WT · 30.1 in tall

What larger tires change compared with the stock 255/65R17
Size	Tall in	Axles rise in	At an indicated 60 true mph	Axle ratio acts like	Compare
255/65R17stock	30.1	0.0	60.0	3.42	Baseline
265/70R17+1.6 in taller	31.631.1 to 32.1	+0.8+0.5 to +1.0	63.162.2 to 64.1	3.253.20 to 3.30	Compare →
285/70R17+2.7 in taller	32.732.2 to 33.2	+1.3+1.1 to +1.6	65.364.3 to 66.3	3.143.10 to 3.19	Compare →
285/75R17+3.8 in taller	33.833.3 to 34.3	+1.9+1.6 to +2.1	67.566.5 to 68.6	3.042.99 to 3.08	Compare →
315/70R17+4.3 in taller	34.433.8 to 34.9	+2.2+1.9 to +2.4	68.667.6 to 69.6	2.992.95 to 3.04	Compare →

Estimate ±Worked out from the nominal sizes; the small line is the range for real tires within 1.5% of nominal.

From 285/70R17Stock on the ZR2 · 32.7 in tall

What larger tires change compared with the stock 285/70R17
Size	Tall in	Axles rise in	At an indicated 60 true mph	Axle ratio acts like	Compare
285/70R17stock	32.7	0.0	60.0	3.42	Baseline
285/75R17+1.1 in taller	33.833.3 to 34.3	+0.6+0.3 to +0.8	62.161.1 to 63.0	3.313.26 to 3.36	Compare →
315/70R17+1.7 in taller	34.433.8 to 34.9	+0.8+0.6 to +1.1	63.062.1 to 64.0	3.263.21 to 3.31	Compare →
35x12.50R17+2.3 in taller	35.034.5 to 35.5	+1.1+0.9 to +1.4	64.263.2 to 65.2	3.203.15 to 3.24	Compare →
37x12.50R17+4.3 in taller	37.036.4 to 37.6	+2.1+1.9 to +2.4	67.966.9 to 68.9	3.022.98 to 3.07	Compare →

Estimate ±Worked out from the nominal sizes; the small line is the range for real tires within 1.5% of nominal.

From 265/65R18Stock on the Z71, Trail Boss · 31.6 in tall

What larger tires change compared with the stock 265/65R18
Size	Tall in	Axles rise in	At an indicated 60 true mph	Axle ratio acts like	Compare
265/65R18stock	31.6	0.0	60.0	3.42	Baseline
265/70R18+1.0 in taller	32.632.1 to 33.1	+0.5+0.3 to +0.8	62.061.1 to 62.9	3.313.26 to 3.36	Compare →
275/70R18+1.6 in taller	33.232.7 to 33.7	+0.8+0.5 to +1.0	63.062.1 to 64.0	3.263.21 to 3.31	Compare →
295/70R18+2.7 in taller	34.333.7 to 34.8	+1.3+1.1 to +1.6	65.164.1 to 66.1	3.153.10 to 3.20	Compare →
285/75R18+3.3 in taller	34.834.3 to 35.4	+1.6+1.4 to +1.9	66.265.2 to 67.2	3.103.05 to 3.15	Compare →
35x12.50R18+3.4 in taller	35.034.5 to 35.5	+1.7+1.5 to +2.0	66.565.5 to 67.5	3.083.04 to 3.13	Compare →

Estimate ±Worked out from the nominal sizes; the small line is the range for real tires within 1.5% of nominal.

From 255/55R20Stock on the Z71 with the Z71 with P255/55R20 all-season tires · 31.0 in tall

What larger tires change compared with the stock 255/55R20
Size	Tall in	Axles rise in	At an indicated 60 true mph	Axle ratio acts like	Compare
255/55R20stock	31.0	0.0	60.0	3.42	Baseline
275/55R20+0.9 in taller	31.931.4 to 32.4	+0.4+0.2 to +0.7	61.760.7 to 62.6	3.333.28 to 3.38	Compare →
275/60R20+1.9 in taller	33.032.5 to 33.5	+1.0+0.7 to +1.2	63.862.8 to 64.7	3.223.17 to 3.27	Compare →
275/65R20+3.0 in taller	34.133.6 to 34.6	+1.5+1.3 to +1.8	65.964.9 to 66.8	3.123.07 to 3.16	Compare →
35x12.50R20+4.0 in taller	35.034.5 to 35.5	+2.0+1.7 to +2.2	67.666.6 to 68.7	3.032.99 to 3.08	Compare →

Estimate ±Worked out from the nominal sizes; the small line is the range for real tires within 1.5% of nominal.

Assumption, not data

Heights come from the size code. A real tire of a size measures within about 1.5% of it, depending on brand, tread, wheel width and pressure, so each figure carries that range. The axles rise by half the change in height; the body only rises with a lift.

Fitment guides for the Colorado

Chevrolet · Colorado

35-inch tires

A 35-inch tire can be built around the current Colorado, but trim is the first decision. Trail Boss and ZR2 start with factory lift and wider tracks; WT, LT and Z71 start lower and need a different plan.

Trim-specific build

03 / By year

Colorado stock tires by model year

Stock tire sizes of the Chevrolet Colorado by model year
Year	Stock sizes
2026	255/65R17 WT 285/70R17 ZR2 265/65R18 Z71, Trail Boss 255/55R20 Z71 with the Z71 with P255/55R20 all-season tires
2025	255/65R17 WT 285/70R17 ZR2 265/65R18 Z71, Trail Boss 255/55R20 Z71 with the Z71 with P255/55R20 all-season tires
2024	285/70R17 ZR2 315/70R17 ZR2 Bison
2022	255/65R17 WT; LT, Z71
2021	255/65R17 WT; LT, Z71
2020	265/70R16 WT 255/65R17 LT, Z71 265/65R17 ZR2
2019	265/70R16 WT 255/65R17 LT, Z71

The 2026 Colorado belongs to the generation below; their pages have each configuration’s clearance, angles and weights.

Chevrolet Colorado 3rd gen (2023–present): full specs

04 / Next

Try a size on your rig

Tire size calculatorPut 285/70R17 next to 285/75R17 or any size you’re eyeing, with this Colorado’s gearing.Compare sizes Colorado specsClearance, angles and weights, and the rig builder to see a lift and bigger tires on it.Open the spec plate Colorado towingTowing, payload, GCWR and tongue weight for every configuration.See towing Tire sizes by vehicleEvery stock size on the trucks and SUVs we cover, by wheel diameter.Browse sizes

05 / FAQ

Questions people ask

Which 2026 Colorado tires are standard, and which come with a package?

Standard: 255/65R17 (WT); 285/70R17 (ZR2); 265/65R18 (Z71, Trail Boss). The Z71 gets 255/55R20 with the Z71 with P255/55R20 all-season tires.

How far off is the 2026 Colorado’s speedometer with bigger tires?

Set for the stock 265/65R18, with 265/70R18s it reads about 3.2% low: 62.0 mph at an indicated 60 (61.1 to 62.9, by brand) and with 35x12.50R18s it reads about 9.8% low: 66.5 mph at an indicated 60 (65.5 to 67.5, by brand). Worked out from the nominal sizes.

Will 35-inch tires fit a Colorado with a level or lift?

It depends on the lift, wheel offset and trim, and this page doesn’t rate fit; our fitment guides do. 35-inch tires: trim-specific build.

What size wheels does the 2026 Colorado have?

17x8 steel: WT. 17x8 aluminum: LT; ZR2. 18x8.5 aluminum: Z71, Trail Boss. 20 x 9.0 aluminum: Z71 with the Z71 with P255/55R20 all-season tires.

What is the biggest tire the 2026 Colorado comes on?

As built, the 285/70R17, about 32.7 in tall (nominal), on the ZR2.

Did the Chevrolet Colorado’s tire sizes change by year?

2026: 255/65R17, 285/70R17, 265/65R18, 255/55R20 with a package. 2025: 255/65R17, 285/70R17, 265/65R18, 255/55R20 with a package. 2024: 285/70R17, 315/70R17. 2022: 255/65R17. 2021: 255/65R17. 2020: 265/70R16, 255/65R17, 265/65R17. 2019: 265/70R16, 255/65R17.