Tires Size 355/25ZR21
Dimensions, specs, and every size 355/25ZR21 tire currently in stock
28"
711 mm · calculated
355 mm
13.98 inches
3.5"
88.8 mm · 25% profile
21"
533.4 mm
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355/25ZR21 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 13.98 in | 355 mm |
| Aspect ratio | 25% | — |
| Sidewall height | 3.5 in | 88.8 mm |
| Overall diameter (calculated) | 28 in | 711 mm |
| Wheel / rim diameter | 21 in | 533.4 mm |
| Construction | Radial | — |
What does 355/25ZR21 mean?
Reading the code on your sidewall
355 mm
The distance from sidewall to sidewall across the tire's widest point.
25% profile
The sidewall stands 25% of the section width, which is 88.8 mm on this size.
Radial
The body plies run across the tire at right angles to the direction of travel.
21 in
Fits a wheel measuring 21 inches across.
355/25ZR21 Questions & Answers
Dimensions and fitment guidelines for size 355/25ZR21
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