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Hankook
Hankook Dynapro AT2 Xtreme RF12 LT305/65R18/10 124/121S - 2021717
Hankook Dynapro AT2 Xtreme RF12 LT305/65R18/10 124/121S - 2021717
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Looking for a 305/65R18 all season tire? The Hankook Dynapro AT2 Xtreme RF12 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 305/65R18 means
In the size 305/65R18, 305 is the section width in millimeters (12.01 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 198.2 mm (7.81 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 33.61 inches, turning roughly 600 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 124 — a maximum load of 3,527 lbs per tire, or 121 (3,197 lbs) per tire when mounted as duals. The speed symbol S corresponds to a maximum sustained speed of 112 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT305/65R18/10 |
| Tire Type | All Season |
| Service Description | 124/121S |
| Load Index | 124/121 |
| Speed Rating | S |
| Load Range | E |
| Section Width (mm) | 305 |
| Aspect Ratio | 65 |
| Overall Diameter (in) | 33.7 |
| Tread Depth (/32") | 14.5 |
| Warranty | 60K |
Frequently asked questions
What kind of tire is the Hankook Dynapro AT2 Xtreme RF12?
The Hankook Dynapro AT2 Xtreme RF12 in 305/65R18 is a all season tire.
What warranty does the Hankook Dynapro AT2 Xtreme RF12 carry?
The manufacturer's warranty on this tire is 60K.
What does 124/121S mean on the Hankook Dynapro AT2 Xtreme RF12?
124/121S breaks down as load index 124 — rated for 3,527 lbs per tire (121, or 3,197 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.
Keep shopping
Browse Hankook tires, see every Hankook Dynapro AT2 Xtreme RF12 size, or view all tires at ThreePiece.us.
- BRAND:
- Hankook
- Model:
- Dynapro AT2 Xtreme RF12
- Size:
- LT305/65R18/10
- Aspect Ratio:
- 65
- Load Index:
- 124/121
- Load Range:
- E
- Section Width:
- 305
- Service Description:
- 124/121S
- Speed Index:
- S
- Tire Rim Diameter:
- 33.7
- Tire Type:
- All Season
- Tread Depth:
- 14.5
- Warranty:
- 60K
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