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Continental
Continental ContiWinterContact TS830P 255/50R21XL 109H - 03550640000
Continental ContiWinterContact TS830P 255/50R21XL 109H - 03550640000
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Continental
UPC:
00051342197811
Availability:
Y
Width:
10.83
(in)
Height:
26.50
(in)
Depth:
26.50
(in)
SKU:
3550640000
|
$541.66
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The Continental ContiWinterContact TS830P in 255/50R21 ships free from ThreePiece.us, with Affirm financing available at checkout and fast delivery from a nationwide warehouse network.
What 255/50R21 means
In the size 255/50R21, 255 is the section width in millimeters (10.04 in), 50 is the aspect ratio — the sidewall stands 50% as tall as the tire is wide, or 127.5 mm (5.02 in) — R denotes radial construction, and 21 is the wheel diameter in inches. That works out to an overall diameter of about 31.04 inches, turning roughly 650 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 26.5 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 109 — a maximum load of 2,271 lbs per tire. The speed symbol H corresponds to a maximum sustained speed of 130 mph.
Specifications
| Size | 255/50R21XL |
| Tire Type | Winter |
| Service Description | 109H |
| Load Index | 109 |
| Speed Rating | H |
| Load Range | XL |
| Section Width (mm) | 255 |
| Aspect Ratio | 50 |
| Overall Diameter (in) | 26.5 |
| Tread Depth (/32") | 10 |
Frequently asked questions
What does 109H mean on the Continental ContiWinterContact TS830P?
109H breaks down as load index 109 — rated for 2,271 lbs per tire — with an H speed rating, good for a maximum sustained 130 mph.
What kind of tire is the Continental ContiWinterContact TS830P?
The Continental ContiWinterContact TS830P in 255/50R21 is a winter tire.
Will 255/50R21 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 255/50R21, this tire matches your vehicle's fitment. If you're changing sizes, compare overall diameter to keep your speedometer and clearances right.
Keep shopping
Browse Continental tires, see every Continental ContiWinterContact TS830P size, explore winter snow tires, or view all tires at ThreePiece.us.
- BRAND:
- Continental
- Model:
- ContiWinterContact TS830P
- Size:
- 255/50R21XL
- Aspect Ratio:
- 50
- Load Index:
- 109
- Load Range:
- XL
- Section Width:
- 255
- Service Description:
- 109H
- Speed Index:
- H
- Tire Rim Diameter:
- 26.5
- Tire Type:
- Winter
- Tread Depth:
- 10
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