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Nexen
Nexen NEX Roadian A/T Pro RA8 LT305/55R20/10
Nexen NEX Roadian A/T Pro RA8 LT305/55R20/10
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Looking for a 305/55R20 all terrain tire? The Nexen Roadian A/T Pro RA8 is available now at ThreePiece.us with free shipping on every order and Affirm financing at checkout.
What 305/55R20 means
In the size 305/55R20, 305 is the section width in millimeters (12.01 in), 55 is the aspect ratio — the sidewall stands 55% as tall as the tire is wide, or 167.8 mm (6.60 in) — R denotes radial construction, and 20 is the wheel diameter in inches. That works out to an overall diameter of about 33.21 inches, turning roughly 607 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 20 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 S corresponds to a maximum sustained speed of 112 mph.
Load Range E corresponds to a 10-ply rating.
Specifications
| Size | LT305/55R20/10 |
| Tire Type | All Terrain |
| Service Description | 121/118S |
| Load Index | 121/118 |
| Speed Rating | S |
| Load Range | E (10 Ply) |
| Section Width (mm) | 305 |
| Aspect Ratio | 55 |
| Overall Diameter (in) | 20 |
| Tread Depth (/32") | 16 |
| Warranty | 40K |
Frequently asked questions
What kind of tire is the Nexen Roadian A/T Pro RA8?
The Nexen Roadian A/T Pro RA8 in 305/55R20 is a all terrain tire.
What warranty does the Nexen Roadian A/T Pro RA8 carry?
The manufacturer's warranty on this tire is 40K.
What does 121/118S mean on the Nexen Roadian A/T Pro RA8?
121/118S breaks down as load index 121 — rated for 3,197 lbs per tire (118, or 2,910 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.
Keep shopping
Shop all 305/55R20 tires, see every Nexen Roadian A/T Pro RA8 size, explore all terrain tires, or view all tires at ThreePiece.us.
- BRAND:
- Nexen
- Model:
- NEX Roadian A/T Pro RA8
- Size:
- LT305/55R20/10
- Aspect Ratio:
- 55
- Load Index:
- 121/118
- Load Range:
- E (10 Ply)
- Section Width:
- 305
- Service Description:
- 121/118S
- Speed Index:
- S
- Temperature:
- N/A
- Tire Rim Diameter:
- 20
- Tire Type:
- All Terrain
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 16
- UQTG:
- N/A
- Warranty:
- 40K
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