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Kenda
Kenda KR400 225/50R18
Kenda KR400 225/50R18
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Shop the Kenda KR400 225/50R18 at ThreePiece.us — free shipping on every order, Affirm financing available, and fast delivery nationwide.
What 225/50R18 means
In the size 225/50R18, 225 is the section width in millimeters (8.86 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 112.5 mm (4.43 in) — R denotes radial construction, and 18 is the wheel diameter in inches. That works out to an overall diameter of about 26.86 inches, turning roughly 751 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 99 — a maximum load of 1,709 lbs per tire. The speed symbol W corresponds to a maximum sustained speed of 168 mph.
Specifications
| Size | 225/50R18 |
| Service Description | 99W |
| Load Index | 99 |
| Speed Rating | W |
| Load Range | XL |
| Section Width (mm) | 225 |
| Aspect Ratio | 50 |
| Temperature Grade | ATIRE RIM DIAMETER=18TIRE TYPE=ULTRA HIGH PERFORMANCETRACTION=AATREAD WEAR=500TREAD DEPTH=UQTG=500 AA AWARRANTY=50000 |
Frequently asked questions
How fast does this tire ship?
Every order at ThreePiece.us ships free, with fast delivery from a nationwide warehouse network. Affirm financing is available at checkout.
What does 99W mean on the Kenda KR400?
99W breaks down as load index 99 — rated for 1,709 lbs per tire — with a W speed rating, good for a maximum sustained 168 mph.
Will 225/50R18 tires fit my vehicle?
Check the size molded into your current tire's sidewall or the tire placard inside the driver's door jamb — if it reads 225/50R18, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right. See every 225/50R18 tire in stock to compare options.
Keep shopping
Shop all 225/50R18 tires, browse Kenda tires, see every Kenda KR400 size, or view all tires at ThreePiece.us.
- BRAND:
- Kenda
- MODEL:
- KR400
- SIZE:
- 225/50R18
- ASPECT RATIO:
- 50
- LOAD INDEX:
- 99
- LOAD RANGE:
- XL
- SECTION WIDTH:
- 225
- SERVICE DESCRIPTION:
- 99W
- SPEED INDEX:
- W
- TEMPERATURE:
- ATIRE RIM DIAMETER=18TIRE TYPE=ULTRA HIGH PERFORMANCETRACTION=AATREAD WEAR=500TREAD DEPTH=UQTG=500 AA AWARRANTY=50000
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