Write a Review
Nexen
Nexen NEX Roadian A/T Pro RA8 LT275/65R18/10
Nexen NEX Roadian A/T Pro RA8 LT275/65R18/10
📧 Get Fitment Help
Verify parts fit & get product recommendations
Lease-to-own for as low as
/week
Get Started
Guaranteed to Fit — confirm your size with the fitment checker on this page
Price Match Guarantee Learn More
Free Mount & Balance
Free Shipping
OUT OF STOCK 
📧 Get Fitment Help
Verify parts fit & get product recommendations
Looking for a 275/65R18 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 275/65R18 means
In the size 275/65R18, 275 is the section width in millimeters (10.83 in), 65 is the aspect ratio — the sidewall stands 65% as tall as the tire is wide, or 178.8 mm (7.04 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 32.07 inches, turning roughly 629 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 18 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 123 — a maximum load of 3,417 lbs per tire, or 120 (3,086 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 | LT275/65R18/10 |
| Tire Type | All Terrain |
| Service Description | 123/120S |
| Load Index | 123/120 |
| Speed Rating | S |
| Load Range | E (10 Ply) |
| Section Width (mm) | 275 |
| Aspect Ratio | 65 |
| Overall Diameter (in) | 18 |
| 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 275/65R18 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 123/120S mean on the Nexen Roadian A/T Pro RA8?
123/120S breaks down as load index 123 — rated for 3,417 lbs per tire (120, or 3,086 lbs, in dual fitment) — with an S speed rating, good for a maximum sustained 112 mph.
Keep shopping
Shop all 275/65R18 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:
- LT275/65R18/10
- Aspect Ratio:
- 65
- Load Index:
- 123/120
- Load Range:
- E (10 Ply)
- Section Width:
- 275
- Service Description:
- 123/120S
- Speed Index:
- S
- Temperature:
- N/A
- Tire Rim Diameter:
- 18
- Tire Type:
- All Terrain
- Traction:
- N/A
- Tread Wear:
- N/A
- Tread Depth:
- 16
- UQTG:
- N/A
- Warranty:
- 40K
PRODUCT REVIEWS (0)
Overall Rankings
Have you tried this product?
WRITE A REVIEWNo reviews for this product yet. Be the first to write a review!
Write a Review