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Michelin
Michelin Defender LTX M/S 235/75R17 109T - 51139
Michelin Defender LTX M/S 235/75R17 109T - 51139
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The Michelin Defender LTX M/S in 235/75R17 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 235/75R17 means
In the size 235/75R17, 235 is the section width in millimeters (9.25 in), 75 is the aspect ratio — the sidewall stands 75% as tall as the tire is wide, or 176.2 mm (6.94 in) — R denotes radial construction, and 17 is the wheel diameter in inches. That works out to an overall diameter of about 30.88 inches, turning roughly 653 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol T corresponds to a maximum sustained speed of 118 mph.
Specifications
| Size | 235/75R17 |
| Tire Type | All Season |
| Service Description | 109T |
| Load Index | 109 |
| Speed Rating | T |
| Load Range | Standard Load |
| Section Width (mm) | 235 |
| Aspect Ratio | 75 |
| Overall Diameter (in) | 30.8 |
| Tread Depth (/32") | 12 |
| Treadwear | 800 |
| Traction Grade | A |
| Temperature Grade | A |
| UTQG | 800AA |
| Warranty | 70K |
Frequently asked questions
What does 109T mean on the Michelin Defender LTX M/S?
109T breaks down as load index 109 — rated for 2,271 lbs per tire — with a T speed rating, good for a maximum sustained 118 mph.
What kind of tire is the Michelin Defender LTX M/S?
The Michelin Defender LTX M/S in 235/75R17 is a all season tire.
What are the treadwear and warranty ratings on the Michelin Defender LTX M/S?
This tire carries a treadwear grade of 800, traction grade A, temperature grade A under UTQG. The manufacturer's warranty is 70K.
Keep shopping
Shop all 235/75R17 tires, browse Michelin tires, see every Michelin Defender LTX M/S size, or view all tires at ThreePiece.us.
- BRAND:
- Michelin
- Model:
- Defender LTX M/S
- Size:
- 235/75R17
- Aspect Ratio:
- 75
- Load Index:
- 109
- Load Range:
- Standard Load
- Section Width:
- 235
- Service Description:
- 109T
- Speed Index:
- T
- Temperature:
- A
- Tire Rim Diameter:
- 30.8
- Tire Type:
- All Season
- Traction:
- A
- Tread Wear:
- 800
- Tread Depth:
- 12
- UQTG:
- 800AA
- Warranty:
- 70K
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