Tires Size 255/50R21
Dimensions, specs, and every size 255/50R21 tire currently in stock
31.04"
788 mm · calculated
255 mm
10.04 inches
5.02"
127.5 mm · 50% profile
21"
533.4 mm
Showing 1 to 5 of 5 products
255/50R21 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 10.04 in | 255 mm |
| Aspect ratio | 50% | — |
| Sidewall height | 5.02 in | 127.5 mm |
| Overall diameter (calculated) | 31.04 in | 788 mm |
| Wheel / rim diameter | 21 in | 533.4 mm |
| Construction | Radial | — |
What does 255/50R21 mean?
Reading the code on your sidewall
255 mm
The distance from sidewall to sidewall across the tire's widest point.
50% profile
The sidewall stands 50% of the section width, which is 127.5 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.
255/50R21 Questions & Answers
Dimensions and fitment guidelines for size 255/50R21
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