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Mickey Thompson
Mickey Thompson MIK Baja Boss 285/65R18/10
Mickey Thompson MIK Baja Boss 285/65R18/10
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Looking for a 285/65R18 all terrain tire? The Mickey Thompson Baja Boss is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 285/65R18 means
In the size 285/65R18, 285 is the section width in millimeters (11.22 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 185.2 mm (7.29 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.59 inches, turning roughly 619 revolutions per mile. Overall diameter is what matters for speedometer accuracy and clearance when you change sizes, so compare it — not just the width — against your current tire.
The manufacturer lists the overall diameter of this specific tire as 18 inches — when clearance is tight, go by the published figure rather than the nominal size math.
The service description on this tire decodes to a load index of 121 — a maximum load of 3,197 lbs per tire, or 118 (2,910 lbs) per tire when mounted as duals. The speed symbol Q corresponds to a maximum sustained speed of 99 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 285/65R18/10 |
| Tire Type | All Terrain |
| Service Description | 121/118Q |
| Load Index | 121/118 |
| Speed Rating | Q |
| Load Range | E (10 Ply) |
| Section Width (mm) | 285 |
| Aspect Ratio | 65 |
| Overall Diameter (in) | 18 |
| Tread Depth (/32") | 9.5 |
Frequently asked questions
What kind of tire is the Mickey Thompson Baja Boss?
The Mickey Thompson Baja Boss in 285/65R18 is a all terrain tire.
Will 285/65R18 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 285/65R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 285/65R18 tire in stock to compare options.
What does 121/118Q mean on the Mickey Thompson Baja Boss?
121/118Q breaks down as load index 121 — rated for 3,197 lbs per tire (118, or 2,910 lbs, in dual fitment) — with a Q speed rating, good for a maximum sustained 99 mph.
Keep shopping
Shop all 285/65R18 tires, see every Mickey Thompson Baja Boss size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Mickey Thompson
- Model:
- MIK Baja Boss
- Size:
- 285/65R18/10
- Aspect Ratio:
- 65
- Load Index:
- 121/118
- Load Range:
- E (10 Ply)
- Section Width:
- 285
- Service Description:
- 121/118Q
- Speed Index:
- Q
- Temperature:
- N/A
- Tire Rim Diameter:
- 18
- Tire Type:
- All Terrain
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 9.5
- UQTG:
- N/A
- Warranty:
- N/A
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