Best 315/30 R21 Tires. Rims & Conversion Info
Best 315/30 R21 All Season Tires
Pirelli Cinturato P7 All Season
Overall: 42% Dry: 82%Wet: 74%Snow: 54%Comfort: 75%Wear: 60%Check on AmazonBest 315/30 R21 Summer Tires
Michelin Pilot Sport 4
Overall: 83.5% Dry: 86.7%Wet: 89%Comfort: 80.5%Wear: 75%Buy again: 80%Check on Amazon
Michelin Pilot Sport Cup 2
Overall: 80.4% Dry: 94.2%Wet: 57.5%Comfort: 74.5%Wear: 62.5%Buy again: 83%Check on Amazon
Pirelli P Zero PZ4
Overall: 68.1% Dry: 88.5%Wet: 82.5%Comfort: 78.5%Wear: 57.5%Buy again: 71%Check on Amazon
Continental ContiSportContact 5P
Overall: 47% Dry: 86%Wet: 79%Comfort: 76%Wear: 53%Check on AmazonBest 315/30 R21 Winter Tires
Pirelli Winter Sottozero 3
Overall: 82.8% Dry: 88.8%Wet: 92.5%Snow: 87.5%Comfort: 83.5%Wear: 81.5%Buy again: 90%Check on Amazon315/30 R21 in inches
315/30 R21 tires diameter is 28.4 inches, section width is 12.4 inches and rim diameter is 21 inches.
Popular comparisons with this size
What rims fit 315/30 R21 tires?
For each tire size there often there are several wheel sizes. You can't put very wide tires on narrow rims or vise versa. Here is what size of the rims do you need for 315/30 R21 tires:
Rim diameter x rim width
- 21x11.5 inches
- 21x10.5 inches
315/30 R21 – what does it mean?
| Parameter | Meaning |
|---|---|
| 315 | The first number shows that the tire has a width of 315 millimeters or approximately 12.4 inches. |
| 30 | The second number is the aspect ratio. In this case, it is 30%. It shows the height of the tire from the ground to rim edge, which is 30% of the width or ~ 95mm |
| R21 | The letter R means this tire is radial. Most of all tires nowadays are radial. The number is the tire diameter in inches. It means that tire will fit 21 inch wheels |