Tires Size 315/35R21
Dimensions, specs, and every size 315/35R21 tire currently in stock
29.68"
754 mm · calculated
315 mm
12.4 inches
4.34"
110.3 mm · 35% profile
21"
533.4 mm
1 product
Showing 1 to 1 of 1 products
315/35R21 Specifications
Read directly from the size code. Load index, speed rating, and rim width range vary by model.
| Specification | Imperial | Metric |
|---|---|---|
| Section width | 12.4 in | 315 mm |
| Aspect ratio | 35% | — |
| Sidewall height | 4.34 in | 110.3 mm |
| Overall diameter (calculated) | 29.68 in | 754 mm |
| Wheel / rim diameter | 21 in | 533.4 mm |
| Construction | Radial | — |
What does 315/35R21 mean?
Reading the code on your sidewall
315 mm
The distance from sidewall to sidewall across the tire's widest point.
35% profile
The sidewall stands 35% of the section width, which is 110.3 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.
315/35R21 Questions & Answers
Dimensions and fitment guidelines for size 315/35R21
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