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Mastercraft
Mastercraft Courser Trail HD 275/70R17/10 121R - 175100010
Mastercraft Courser Trail HD 275/70R17/10 121R - 175100010
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Looking for a 275/70R17 all season tire? The Mastercraft Courser Trail HD is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 275/70R17 means
In the size 275/70R17, 275 is the section width in millimeters (10.83 in), 70 is the aspect ratio — the sidewall stands 70% as tall as the tire is wide, or 192.5 mm (7.58 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 32.16 inches, turning roughly 627 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 service description on this tire decodes to a load index of 121 — a maximum load of 3,197 lbs per tire. The speed symbol R corresponds to a maximum sustained speed of 106 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | 275/70R17/10 |
| Tire Type | All Season |
| Service Description | 121R |
| Load Index | 121 |
| Speed Rating | R |
| Load Range | E |
| Section Width (mm) | 275 |
| Aspect Ratio | 70 |
| Overall Diameter (in) | 32.17 |
| Tread Depth (/32") | 16.5 |
| Warranty | 55K |
Frequently asked questions
What kind of tire is the Mastercraft Courser Trail HD?
The Mastercraft Courser Trail HD in 275/70R17 is a all season tire.
What warranty does the Mastercraft Courser Trail HD carry?
The manufacturer's warranty on this tire is 55K.
What does 121R mean on the Mastercraft Courser Trail HD?
121R breaks down as load index 121 — rated for 3,197 lbs per tire — with an R speed rating, good for a maximum sustained 106 mph.
Keep shopping
Browse Mastercraft tires, see every Mastercraft Courser Trail HD size, or view all tires at ThreePiece.us.
- BRAND:
- Mastercraft
- Model:
- Courser Trail HD
- Size:
- 275/70R17/10
- Aspect Ratio:
- 70
- Load Index:
- 121
- Load Range:
- E
- Section Width:
- 275
- Service Description:
- 121R
- Speed Index:
- R
- Tire Rim Diameter:
- 32.17
- Tire Type:
- All Season
- Tread Depth:
- 16.5
- Warranty:
- 55K
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