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Mickey Thompson
Mickey Thompson MIK Baja Boss A/T LT255/85R17
Mickey Thompson MIK Baja Boss A/T LT255/85R17
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Looking for a 255/85R17 all terrain tire? The Mickey Thompson Baja Boss A/T is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 255/85R17 means
In the size 255/85R17, 255 is the section width in millimeters (10.04 in), 85 is the aspect ratio — the sidewall stands 85% as tall as the tire is wide, or 216.8 mm (8.53 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 34.07 inches, turning roughly 592 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 17 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 | LT255/85R17 |
| Tire Type | All Terrain |
| Service Description | 121/118Q |
| Load Index | 121/118 |
| Speed Rating | Q |
| Load Range | E (10 Ply) |
| Section Width (mm) | 255 |
| Aspect Ratio | 85 |
| Overall Diameter (in) | 17 |
| Tread Depth (/32") | 14.7 |
| Warranty | 50K |
Frequently asked questions
What kind of tire is the Mickey Thompson Baja Boss A/T?
The Mickey Thompson Baja Boss A/T in 255/85R17 is a all terrain tire.
What warranty does the Mickey Thompson Baja Boss A/T carry?
The manufacturer's warranty on this tire is 50K.
What does 121/118Q mean on the Mickey Thompson Baja Boss A/T?
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
See every Mickey Thompson Baja Boss A/T size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Mickey Thompson
- Model:
- MIK Baja Boss A/T
- Size:
- LT255/85R17
- Aspect Ratio:
- 85
- Load Index:
- 121/118
- Load Range:
- E (10 Ply)
- Section Width:
- 255
- Service Description:
- 121/118Q
- Speed Index:
- Q
- Temperature:
- N/A
- Tire Rim Diameter:
- 17
- Tire Type:
- All Terrain
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 14.7
- UQTG:
- N/A
- Warranty:
- 50K
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